diff --git a/packages/common/src/priority.ts b/packages/common/src/priority.ts
index a7bd220bc..72e927eae 100644
--- a/packages/common/src/priority.ts
+++ b/packages/common/src/priority.ts
@@ -11,7 +11,8 @@ import type { temporal } from '@temporalio/proto';
  * calling workflow, then use the default (documented on the field).
  * The overall semantics of Priority are:
  * 1. First, consider "priority_key": lower number goes first.
- * (more will be added here later)
+ * 2. Then, consider fairness: the fairness mechanism attempts to dispatch tasks for a given key in
+ *    proportion to its weight.
  */
 export interface Priority {
   /**
@@ -26,13 +27,43 @@ export interface Priority {
    * The default priority is (min+max)/2. With the default max of 5 and min of 1, that comes out to 3.
    */
   priorityKey?: number;
+
+  /**
+   * FairnessKey is a short string that's used as a key for a fairness
+   * balancing mechanism. It may correspond to a tenant id, or to a fixed
+   * string like "high" or "low". The default is the empty string.
+   *
+   * The fairness mechanism attempts to dispatch tasks for a given key in
+   * proportion to its weight. For example, using a thousand distinct tenant
+   * ids, each with a weight of 1.0 (the default) will result in each tenant
+   * getting a roughly equal share of task dispatch throughput.
+   *
+   * Fairness keys are limited to 64 bytes.
+   */
+  fairnessKey?: string;
+
+  /**
+   * FairnessWeight for a task can come from multiple sources for
+   * flexibility. From highest to lowest precedence:
+   * 1. Weights for a small set of keys can be overridden in task queue
+   *    configuration with an API.
+   * 2. It can be attached to the workflow/activity in this field.
+   * 3. The default weight of 1.0 will be used.
+   *
+   * Weight values are clamped to the range [0.001, 1000].
+   */
+  fairnessWeight?: number;
 }
 
 /**
  * Turn a proto compatible Priority into a TS Priority
  */
 export function decodePriority(priority?: temporal.api.common.v1.IPriority | null): Priority {
-  return { priorityKey: priority?.priorityKey ?? undefined };
+  return {
+    priorityKey: priority?.priorityKey ?? undefined,
+    fairnessKey: priority?.fairnessKey ?? undefined,
+    fairnessWeight: priority?.fairnessWeight ?? undefined,
+  };
 }
 
 /**
@@ -50,5 +81,7 @@ export function compilePriority(priority: Priority): temporal.api.common.v1.IPri
 
   return {
     priorityKey: priority.priorityKey ?? 0,
+    fairnessKey: priority.fairnessKey ?? '',
+    fairnessWeight: priority.fairnessWeight ?? 0,
   };
 }
diff --git a/packages/core-bridge/Cargo.lock b/packages/core-bridge/Cargo.lock
index 5f34f7332..d887f2eff 100644
--- a/packages/core-bridge/Cargo.lock
+++ b/packages/core-bridge/Cargo.lock
@@ -13,9 +13,9 @@ dependencies = [
 
 [[package]]
 name = "adler2"
-version = "2.0.0"
+version = "2.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "512761e0bb2578dd7380c6baaa0f4ce03e84f95e960231d1dec8bf4d7d6e2627"
+checksum = "320119579fcad9c21884f5c4861d16174d0e06250625266f50fe6898340abefa"
 
 [[package]]
 name = "aes"
@@ -45,30 +45,30 @@ checksum = "683d7910e743518b0e34f1186f92494becacb047c7b6bf616c96772180fef923"
 
 [[package]]
 name = "anstyle"
-version = "1.0.10"
+version = "1.0.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "55cc3b69f167a1ef2e161439aa98aed94e6028e5f9a59be9a6ffb47aef1651f9"
+checksum = "862ed96ca487e809f1c8e5a8447f6ee2cf102f846893800b20cebdf541fc6bbd"
 
 [[package]]
 name = "anyhow"
-version = "1.0.98"
+version = "1.0.99"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e16d2d3311acee920a9eb8d33b8cbc1787ce4a264e85f964c2404b969bdcd487"
+checksum = "b0674a1ddeecb70197781e945de4b3b8ffb61fa939a5597bcf48503737663100"
 
 [[package]]
 name = "arbitrary"
-version = "1.4.1"
+version = "1.4.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "dde20b3d026af13f561bdd0f15edf01fc734f0dafcedbaf42bba506a9517f223"
+checksum = "c3d036a3c4ab069c7b410a2ce876bd74808d2d0888a82667669f8e783a898bf1"
 dependencies = [
  "derive_arbitrary",
 ]
 
 [[package]]
 name = "async-trait"
-version = "0.1.88"
+version = "0.1.89"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e539d3fca749fcee5236ab05e93a52867dd549cc157c8cb7f99595f3cedffdb5"
+checksum = "9035ad2d096bed7955a320ee7e2230574d28fd3c3a0f186cbea1ff3c7eed5dbb"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -83,9 +83,9 @@ checksum = "1505bd5d3d116872e7271a6d4e16d81d0c8570876c8de68093a09ac269d8aac0"
 
 [[package]]
 name = "autocfg"
-version = "1.4.0"
+version = "1.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ace50bade8e6234aa140d9a2f552bbee1db4d353f69b8217bc503490fc1a9f26"
+checksum = "c08606f8c3cbf4ce6ec8e28fb0014a2c086708fe954eaa885384a6165172e7e8"
 
 [[package]]
 name = "axum"
@@ -166,9 +166,9 @@ checksum = "72b3254f16251a8381aa12e40e3c4d2f0199f8c6508fbecb9d91f575e0fbb8c6"
 
 [[package]]
 name = "bitflags"
-version = "2.9.0"
+version = "2.9.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5c8214115b7bf84099f1309324e63141d4c5d7cc26862f97a0a857dbefe165bd"
+checksum = "6a65b545ab31d687cff52899d4890855fec459eb6afe0da6417b8a18da87aa29"
 
 [[package]]
 name = "block-buffer"
@@ -191,9 +191,9 @@ dependencies = [
 
 [[package]]
 name = "bumpalo"
-version = "3.17.0"
+version = "3.19.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1628fb46dfa0b37568d12e5edd512553eccf6a22a78e8bde00bb4aed84d5bdbf"
+checksum = "46c5e41b57b8bba42a04676d81cb89e9ee8e859a1a66f80a5a72e1cb76b34d43"
 
 [[package]]
 name = "byteorder"
@@ -228,9 +228,9 @@ dependencies = [
 
 [[package]]
 name = "cc"
-version = "1.2.22"
+version = "1.2.33"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "32db95edf998450acc7881c932f94cd9b05c87b4b2599e8bab064753da4acfd1"
+checksum = "3ee0f8803222ba5a7e2777dd72ca451868909b1ac410621b676adf07280e9b5f"
 dependencies = [
  "jobserver",
  "libc",
@@ -239,9 +239,9 @@ dependencies = [
 
 [[package]]
 name = "cfg-if"
-version = "1.0.0"
+version = "1.0.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
+checksum = "2fd1289c04a9ea8cb22300a459a72a385d7c73d3259e2ed7dcb2af674838cfa9"
 
 [[package]]
 name = "cfg_aliases"
@@ -286,9 +286,9 @@ dependencies = [
 
 [[package]]
 name = "core-foundation"
-version = "0.10.0"
+version = "0.10.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b55271e5c8c478ad3f38ad24ef34923091e0548492a266d19b3c0b4d82574c63"
+checksum = "b2a6cd9ae233e7f62ba4e9353e81a88df7fc8a5987b8d445b4d90c879bd156f6"
 dependencies = [
  "core-foundation-sys",
  "libc",
@@ -326,9 +326,9 @@ checksum = "19d374276b40fb8bbdee95aef7c7fa6b5316ec764510eb64b8dd0e2ed0d7e7f5"
 
 [[package]]
 name = "crc32fast"
-version = "1.4.2"
+version = "1.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a97769d94ddab943e4510d138150169a2758b5ef3eb191a9ee688de3e23ef7b3"
+checksum = "9481c1c90cbf2ac953f07c8d4a58aa3945c425b7185c9154d67a65e4230da511"
 dependencies = [
  "cfg-if",
 ]
@@ -433,9 +433,9 @@ dependencies = [
 
 [[package]]
 name = "derive_arbitrary"
-version = "1.4.1"
+version = "1.4.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "30542c1ad912e0e3d22a1935c290e12e8a29d704a420177a31faad4a601a0800"
+checksum = "1e567bd82dcff979e4b03460c307b3cdc9e96fde3d73bed1496d2bc75d9dd62a"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -578,12 +578,12 @@ dependencies = [
 
 [[package]]
 name = "errno"
-version = "0.3.11"
+version = "0.3.13"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "976dd42dc7e85965fe702eb8164f21f450704bdde31faefd6471dba214cb594e"
+checksum = "778e2ac28f6c47af28e4907f13ffd1e1ddbd400980a9abd7c8df189bf578a5ad"
 dependencies = [
  "libc",
- "windows-sys 0.59.0",
+ "windows-sys 0.60.2",
 ]
 
 [[package]]
@@ -612,9 +612,9 @@ checksum = "1d674e81391d1e1ab681a28d99df07927c6d4aa5b027d7da16ba32d1d21ecd99"
 
 [[package]]
 name = "flate2"
-version = "1.1.1"
+version = "1.1.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7ced92e76e966ca2fd84c8f7aa01a4aea65b0eb6648d72f7c8f3e2764a67fece"
+checksum = "4a3d7db9596fecd151c5f638c0ee5d5bd487b6e0ea232e5dc96d5250f6f94b1d"
 dependencies = [
  "crc32fast",
  "miniz_oxide",
@@ -782,7 +782,7 @@ dependencies = [
  "cfg-if",
  "js-sys",
  "libc",
- "wasi 0.11.0+wasi-snapshot-preview1",
+ "wasi 0.11.1+wasi-snapshot-preview1",
  "wasm-bindgen",
 ]
 
@@ -823,7 +823,7 @@ dependencies = [
  "parking_lot",
  "portable-atomic",
  "quanta",
- "rand 0.9.1",
+ "rand 0.9.2",
  "smallvec",
  "spinning_top",
  "web-time",
@@ -831,9 +831,9 @@ dependencies = [
 
 [[package]]
 name = "h2"
-version = "0.4.10"
+version = "0.4.12"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a9421a676d1b147b16b82c9225157dc629087ef8ec4d5e2960f9437a90dac0a5"
+checksum = "f3c0b69cfcb4e1b9f1bf2f53f95f766e4661169728ec61cd3fe5a0166f2d1386"
 dependencies = [
  "atomic-waker",
  "bytes",
@@ -856,9 +856,9 @@ checksum = "e5274423e17b7c9fc20b6e7e208532f9b19825d82dfd615708b70edd83df41f1"
 
 [[package]]
 name = "hashbrown"
-version = "0.15.3"
+version = "0.15.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "84b26c544d002229e640969970a2e74021aadf6e2f96372b9c58eff97de08eb3"
+checksum = "9229cfe53dfd69f0609a49f65461bd93001ea1ef889cd5529dd176593f5338a1"
 dependencies = [
  "allocator-api2",
  "equivalent",
@@ -928,13 +928,14 @@ checksum = "df3b46402a9d5adb4c86a0cf463f42e19994e3ee891101b1841f30a545cb49a9"
 
 [[package]]
 name = "hyper"
-version = "1.6.0"
+version = "1.7.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cc2b571658e38e0c01b1fdca3bbbe93c00d3d71693ff2770043f8c29bc7d6f80"
+checksum = "eb3aa54a13a0dfe7fbe3a59e0c76093041720fdc77b110cc0fc260fafb4dc51e"
 dependencies = [
+ "atomic-waker",
  "bytes",
  "futures-channel",
- "futures-util",
+ "futures-core",
  "h2",
  "http",
  "http-body",
@@ -942,6 +943,7 @@ dependencies = [
  "httpdate",
  "itoa",
  "pin-project-lite",
+ "pin-utils",
  "smallvec",
  "tokio",
  "want",
@@ -949,11 +951,10 @@ dependencies = [
 
 [[package]]
 name = "hyper-rustls"
-version = "0.27.5"
+version = "0.27.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2d191583f3da1305256f22463b9bb0471acad48a4e534a5218b9963e9c1f59b2"
+checksum = "e3c93eb611681b207e1fe55d5a71ecf91572ec8a6705cdb6857f7d8d5242cf58"
 dependencies = [
- "futures-util",
  "http",
  "hyper",
  "hyper-util",
@@ -980,19 +981,23 @@ dependencies = [
 
 [[package]]
 name = "hyper-util"
-version = "0.1.11"
+version = "0.1.16"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "497bbc33a26fdd4af9ed9c70d63f61cf56a938375fbb32df34db9b1cd6d643f2"
+checksum = "8d9b05277c7e8da2c93a568989bb6207bef0112e8d17df7a6eda4a3cf143bc5e"
 dependencies = [
+ "base64",
  "bytes",
  "futures-channel",
+ "futures-core",
  "futures-util",
  "http",
  "http-body",
  "hyper",
+ "ipnet",
  "libc",
+ "percent-encoding",
  "pin-project-lite",
- "socket2",
+ "socket2 0.6.0",
  "tokio",
  "tower-service",
  "tracing",
@@ -1047,9 +1052,9 @@ checksum = "00210d6893afc98edb752b664b8890f0ef174c8adbb8d0be9710fa66fbbf72d3"
 
 [[package]]
 name = "icu_properties"
-version = "2.0.0"
+version = "2.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2549ca8c7241c82f59c80ba2a6f415d931c5b58d24fb8412caa1a1f02c49139a"
+checksum = "016c619c1eeb94efb86809b015c58f479963de65bdb6253345c1a1276f22e32b"
 dependencies = [
  "displaydoc",
  "icu_collections",
@@ -1063,9 +1068,9 @@ dependencies = [
 
 [[package]]
 name = "icu_properties_data"
-version = "2.0.0"
+version = "2.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8197e866e47b68f8f7d95249e172903bec06004b18b2937f1095d40a0c57de04"
+checksum = "298459143998310acd25ffe6810ed544932242d3f07083eee1084d83a71bd632"
 
 [[package]]
 name = "icu_provider"
@@ -1113,12 +1118,12 @@ dependencies = [
 
 [[package]]
 name = "indexmap"
-version = "2.9.0"
+version = "2.10.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cea70ddb795996207ad57735b50c5982d8844f38ba9ee5f1aedcfb708a2aa11e"
+checksum = "fe4cd85333e22411419a0bcae1297d25e58c9443848b11dc6a86fefe8c78a661"
 dependencies = [
  "equivalent",
- "hashbrown 0.15.3",
+ "hashbrown 0.15.5",
 ]
 
 [[package]]
@@ -1148,12 +1153,33 @@ dependencies = [
  "rustversion",
 ]
 
+[[package]]
+name = "io-uring"
+version = "0.7.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d93587f37623a1a17d94ef2bc9ada592f5465fe7732084ab7beefabe5c77c0c4"
+dependencies = [
+ "bitflags",
+ "cfg-if",
+ "libc",
+]
+
 [[package]]
 name = "ipnet"
 version = "2.11.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "469fb0b9cefa57e3ef31275ee7cacb78f2fdca44e4765491884a2b119d4eb130"
 
+[[package]]
+name = "iri-string"
+version = "0.7.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "dbc5ebe9c3a1a7a5127f920a418f7585e9e758e911d0466ed004f393b0e380b2"
+dependencies = [
+ "memchr",
+ "serde",
+]
+
 [[package]]
 name = "itertools"
 version = "0.14.0"
@@ -1197,31 +1223,51 @@ checksum = "bbd2bcb4c963f2ddae06a2efc7e9f3591312473c50c6685e1f298068316e66fe"
 
 [[package]]
 name = "libc"
-version = "0.2.172"
+version = "0.2.175"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d750af042f7ef4f724306de029d18836c26c1765a54a6a3f094cbd23a7267ffa"
+checksum = "6a82ae493e598baaea5209805c49bbf2ea7de956d50d7da0da1164f9c6d28543"
 
 [[package]]
 name = "libloading"
-version = "0.8.7"
+version = "0.8.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6a793df0d7afeac54f95b471d3af7f0d4fb975699f972341a4b76988d49cdf0c"
+checksum = "07033963ba89ebaf1584d767badaa2e8fcec21aedea6b8c0346d487d49c28667"
 dependencies = [
  "cfg-if",
- "windows-targets 0.53.0",
+ "windows-targets 0.53.3",
 ]
 
 [[package]]
 name = "libredox"
-version = "0.1.3"
+version = "0.1.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c0ff37bd590ca25063e35af745c343cb7a0271906fb7b37e4813e8f79f00268d"
+checksum = "391290121bad3d37fbddad76d8f5d1c1c314cfc646d143d7e07a3086ddff0ce3"
 dependencies = [
  "bitflags",
  "libc",
  "redox_syscall",
 ]
 
+[[package]]
+name = "linkme"
+version = "0.3.33"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a1b1703c00b2a6a70738920544aa51652532cacddfec2e162d2e29eae01e665c"
+dependencies = [
+ "linkme-impl",
+]
+
+[[package]]
+name = "linkme-impl"
+version = "0.3.33"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "04d55ca5d5a14363da83bf3c33874b8feaa34653e760d5216d7ef9829c88001a"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
 [[package]]
 name = "linux-raw-sys"
 version = "0.9.4"
@@ -1236,9 +1282,9 @@ checksum = "241eaef5fd12c88705a01fc1066c48c4b36e0dd4377dcdc7ec3942cea7a69956"
 
 [[package]]
 name = "lock_api"
-version = "0.4.12"
+version = "0.4.13"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "07af8b9cdd281b7915f413fa73f29ebd5d55d0d3f0155584dade1ff18cea1b17"
+checksum = "96936507f153605bddfcda068dd804796c84324ed2510809e5b2a624c81da765"
 dependencies = [
  "autocfg",
  "scopeguard",
@@ -1256,7 +1302,7 @@ version = "0.13.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "227748d55f2f0ab4735d87fd623798cb6b664512fe979705f829c9f81c934465"
 dependencies = [
- "hashbrown 0.15.3",
+ "hashbrown 0.15.5",
 ]
 
 [[package]]
@@ -1303,9 +1349,9 @@ checksum = "47e1ffaa40ddd1f3ed91f717a33c8c0ee23fff369e3aa8772b9605cc1d22f4c3"
 
 [[package]]
 name = "memchr"
-version = "2.7.4"
+version = "2.7.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "78ca9ab1a0babb1e7d5695e3530886289c18cf2f87ec19a575a0abdce112e3a3"
+checksum = "32a282da65faaf38286cf3be983213fcf1d2e2a58700e808f83f4ea9a4804bc0"
 
 [[package]]
 name = "mime"
@@ -1315,22 +1361,22 @@ checksum = "6877bb514081ee2a7ff5ef9de3281f14a4dd4bceac4c09388074a6b5df8a139a"
 
 [[package]]
 name = "miniz_oxide"
-version = "0.8.8"
+version = "0.8.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3be647b768db090acb35d5ec5db2b0e1f1de11133ca123b9eacf5137868f892a"
+checksum = "1fa76a2c86f704bdb222d66965fb3d63269ce38518b83cb0575fca855ebb6316"
 dependencies = [
  "adler2",
 ]
 
 [[package]]
 name = "mio"
-version = "1.0.3"
+version = "1.0.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2886843bf800fba2e3377cff24abf6379b4c4d5c6681eaf9ea5b0d15090450bd"
+checksum = "78bed444cc8a2160f01cbcf811ef18cac863ad68ae8ca62092e8db51d51c761c"
 dependencies = [
  "libc",
- "wasi 0.11.0+wasi-snapshot-preview1",
- "windows-sys 0.52.0",
+ "wasi 0.11.1+wasi-snapshot-preview1",
+ "windows-sys 0.59.0",
 ]
 
 [[package]]
@@ -1367,11 +1413,13 @@ checksum = "1d87ecb2933e8aeadb3e3a02b828fed80a7528047e68b4f424523a0981a3a084"
 
 [[package]]
 name = "neon"
-version = "1.0.0"
+version = "1.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7d75440242411c87dc39847b0e33e961ec1f10326a9d8ecf9c1ea64a3b3c13dc"
+checksum = "74c1d298c79e60a3f5a1e638ace1f9c1229d2a97bd3a9e40a63b67c8efa0f1e1"
 dependencies = [
+ "either",
  "libloading",
+ "linkme",
  "neon-macros",
  "once_cell",
  "semver",
@@ -1382,13 +1430,13 @@ dependencies = [
 
 [[package]]
 name = "neon-macros"
-version = "1.0.0"
+version = "1.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c6813fde79b646e47e7ad75f480aa80ef76a5d9599e2717407961531169ee38b"
+checksum = "c39e43767817fc963f90f400600967a2b2403602c6440685d09a6bc4e02b70b1"
 dependencies = [
+ "proc-macro2",
  "quote",
  "syn",
- "syn-mid",
 ]
 
 [[package]]
@@ -1468,7 +1516,7 @@ dependencies = [
  "futures-sink",
  "js-sys",
  "pin-project-lite",
- "thiserror 2.0.12",
+ "thiserror 2.0.15",
  "tracing",
 ]
 
@@ -1482,7 +1530,7 @@ dependencies = [
  "futures-sink",
  "js-sys",
  "pin-project-lite",
- "thiserror 2.0.12",
+ "thiserror 2.0.15",
  "tracing",
 ]
 
@@ -1512,7 +1560,7 @@ dependencies = [
  "opentelemetry_sdk",
  "prost",
  "reqwest",
- "thiserror 2.0.12",
+ "thiserror 2.0.15",
  "tokio",
  "tonic",
  "tracing",
@@ -1541,18 +1589,18 @@ dependencies = [
  "futures-util",
  "opentelemetry 0.30.0",
  "percent-encoding",
- "rand 0.9.1",
+ "rand 0.9.2",
  "serde_json",
- "thiserror 2.0.12",
+ "thiserror 2.0.15",
  "tokio",
  "tokio-stream",
 ]
 
 [[package]]
 name = "os_pipe"
-version = "1.2.1"
+version = "1.2.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5ffd2b0a5634335b135d5728d84c5e0fd726954b87111f7506a61c502280d982"
+checksum = "db335f4760b14ead6290116f2427bf33a14d4f0617d49f78a246de10c1831224"
 dependencies = [
  "libc",
  "windows-sys 0.59.0",
@@ -1566,9 +1614,9 @@ checksum = "b15813163c1d831bf4a13c3610c05c0d03b39feb07f7e09fa234dac9b15aaf39"
 
 [[package]]
 name = "parking_lot"
-version = "0.12.3"
+version = "0.12.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f1bf18183cf54e8d6059647fc3063646a1801cf30896933ec2311622cc4b9a27"
+checksum = "70d58bf43669b5795d1576d0641cfb6fbb2057bf629506267a92807158584a13"
 dependencies = [
  "lock_api",
  "parking_lot_core",
@@ -1576,9 +1624,9 @@ dependencies = [
 
 [[package]]
 name = "parking_lot_core"
-version = "0.9.10"
+version = "0.9.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1e401f977ab385c9e4e3ab30627d6f26d00e2c73eef317493c4ec6d468726cf8"
+checksum = "bc838d2a56b5b1a6c25f55575dfc605fabb63bb2365f6c2353ef9159aa69e4a5"
 dependencies = [
  "cfg-if",
  "libc",
@@ -1662,9 +1710,9 @@ checksum = "7edddbd0b52d732b21ad9a5fab5c704c14cd949e5e9a1ec5929a24fded1b904c"
 
 [[package]]
 name = "portable-atomic"
-version = "1.11.0"
+version = "1.11.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "350e9b48cbc6b0e028b0473b114454c6316e57336ee184ceab6e53f72c178b3e"
+checksum = "f84267b20a16ea918e43c6a88433c2d54fa145c92a811b5b047ccbe153674483"
 
 [[package]]
 name = "portable-atomic-util"
@@ -1727,9 +1775,9 @@ dependencies = [
 
 [[package]]
 name = "prettyplease"
-version = "0.2.32"
+version = "0.2.37"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "664ec5419c51e34154eec046ebcba56312d5a2fc3b09a06da188e1ad21afadf6"
+checksum = "479ca8adacdd7ce8f1fb39ce9ecccbfe93a3f1344b3d0d97f20bc0196208f62b"
 dependencies = [
  "proc-macro2",
  "syn",
@@ -1737,9 +1785,9 @@ dependencies = [
 
 [[package]]
 name = "proc-macro2"
-version = "1.0.95"
+version = "1.0.101"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "02b3e5e68a3a1a02aad3ec490a98007cbc13c37cbe84a3cd7b8e406d76e7f778"
+checksum = "89ae43fd86e4158d6db51ad8e2b80f313af9cc74f5c0e03ccb87de09998732de"
 dependencies = [
  "unicode-ident",
 ]
@@ -1756,7 +1804,7 @@ dependencies = [
  "memchr",
  "parking_lot",
  "protobuf",
- "thiserror 2.0.12",
+ "thiserror 2.0.15",
 ]
 
 [[package]]
@@ -1879,15 +1927,15 @@ dependencies = [
 
 [[package]]
 name = "quanta"
-version = "0.12.5"
+version = "0.12.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3bd1fe6824cea6538803de3ff1bc0cf3949024db3d43c9643024bfb33a807c0e"
+checksum = "f3ab5a9d756f0d97bdc89019bd2e4ea098cf9cde50ee7564dde6b81ccc8f06c7"
 dependencies = [
  "crossbeam-utils",
  "libc",
  "once_cell",
  "raw-cpuid",
- "wasi 0.11.0+wasi-snapshot-preview1",
+ "wasi 0.11.1+wasi-snapshot-preview1",
  "web-sys",
  "winapi",
 ]
@@ -1905,8 +1953,8 @@ dependencies = [
  "quinn-udp",
  "rustc-hash",
  "rustls",
- "socket2",
- "thiserror 2.0.12",
+ "socket2 0.5.10",
+ "thiserror 2.0.15",
  "tokio",
  "tracing",
  "web-time",
@@ -1921,13 +1969,13 @@ dependencies = [
  "bytes",
  "getrandom 0.3.3",
  "lru-slab",
- "rand 0.9.1",
+ "rand 0.9.2",
  "ring",
  "rustc-hash",
  "rustls",
  "rustls-pki-types",
  "slab",
- "thiserror 2.0.12",
+ "thiserror 2.0.15",
  "tinyvec",
  "tracing",
  "web-time",
@@ -1935,14 +1983,14 @@ dependencies = [
 
 [[package]]
 name = "quinn-udp"
-version = "0.5.12"
+version = "0.5.13"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ee4e529991f949c5e25755532370b8af5d114acae52326361d68d47af64aa842"
+checksum = "fcebb1209ee276352ef14ff8732e24cc2b02bbac986cd74a4c81bcb2f9881970"
 dependencies = [
  "cfg_aliases",
  "libc",
  "once_cell",
- "socket2",
+ "socket2 0.5.10",
  "tracing",
  "windows-sys 0.59.0",
 ]
@@ -1958,9 +2006,9 @@ dependencies = [
 
 [[package]]
 name = "r-efi"
-version = "5.2.0"
+version = "5.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "74765f6d916ee2faa39bc8e68e4f3ed8949b48cccdac59983d287a7cb71ce9c5"
+checksum = "69cdb34c158ceb288df11e18b4bd39de994f6657d83847bdffdbd7f346754b0f"
 
 [[package]]
 name = "rand"
@@ -1975,9 +2023,9 @@ dependencies = [
 
 [[package]]
 name = "rand"
-version = "0.9.1"
+version = "0.9.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9fbfd9d094a40bf3ae768db9361049ace4c0e04a4fd6b359518bd7b73a73dd97"
+checksum = "6db2770f06117d490610c7488547d543617b21bfa07796d7a12f6f1bd53850d1"
 dependencies = [
  "rand_chacha 0.9.0",
  "rand_core 0.9.3",
@@ -2032,9 +2080,9 @@ dependencies = [
 
 [[package]]
 name = "redox_syscall"
-version = "0.5.12"
+version = "0.5.17"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "928fca9cf2aa042393a8325b9ead81d2f0df4cb12e1e24cef072922ccd99c5af"
+checksum = "5407465600fb0548f1442edf71dd20683c6ed326200ace4b1ef0763521bb3b77"
 dependencies = [
  "bitflags",
 ]
@@ -2085,9 +2133,9 @@ checksum = "2b15c43186be67a4fd63bee50d0303afffcef381492ebe2c5d87f324e1b8815c"
 
 [[package]]
 name = "reqwest"
-version = "0.12.15"
+version = "0.12.23"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d19c46a6fdd48bc4dab94b6103fccc55d34c67cc0ad04653aad4ea2a07cd7bbb"
+checksum = "d429f34c8092b2d42c7c93cec323bb4adeb7c67698f70839adec842ec10c7ceb"
 dependencies = [
  "base64",
  "bytes",
@@ -2100,17 +2148,13 @@ dependencies = [
  "hyper",
  "hyper-rustls",
  "hyper-util",
- "ipnet",
  "js-sys",
  "log",
- "mime",
- "once_cell",
  "percent-encoding",
  "pin-project-lite",
  "quinn",
  "rustls",
  "rustls-native-certs",
- "rustls-pemfile",
  "rustls-pki-types",
  "serde",
  "serde_json",
@@ -2120,13 +2164,13 @@ dependencies = [
  "tokio-rustls",
  "tokio-util",
  "tower",
+ "tower-http",
  "tower-service",
  "url",
  "wasm-bindgen",
  "wasm-bindgen-futures",
  "wasm-streams",
  "web-sys",
- "windows-registry",
 ]
 
 [[package]]
@@ -2156,9 +2200,9 @@ dependencies = [
 
 [[package]]
 name = "rustc-demangle"
-version = "0.1.24"
+version = "0.1.26"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "719b953e2095829ee67db738b3bfa9fa368c94900df327b3f07fe6e794d2fe1f"
+checksum = "56f7d92ca342cea22a06f2121d944b4fd82af56988c270852495420f961d4ace"
 
 [[package]]
 name = "rustc-hash"
@@ -2191,22 +2235,22 @@ version = "0.1.0"
 
 [[package]]
 name = "rustix"
-version = "1.0.7"
+version = "1.0.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c71e83d6afe7ff64890ec6b71d6a69bb8a610ab78ce364b3352876bb4c801266"
+checksum = "11181fbabf243db407ef8df94a6ce0b2f9a733bd8be4ad02b4eda9602296cac8"
 dependencies = [
  "bitflags",
  "errno",
  "libc",
  "linux-raw-sys",
- "windows-sys 0.59.0",
+ "windows-sys 0.60.2",
 ]
 
 [[package]]
 name = "rustls"
-version = "0.23.27"
+version = "0.23.31"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "730944ca083c1c233a75c09f199e973ca499344a2b7ba9e755c457e86fb4a321"
+checksum = "c0ebcbd2f03de0fc1122ad9bb24b127a5a6cd51d72604a3f3c50ac459762b6cc"
 dependencies = [
  "log",
  "once_cell",
@@ -2229,15 +2273,6 @@ dependencies = [
  "security-framework",
 ]
 
-[[package]]
-name = "rustls-pemfile"
-version = "2.2.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "dce314e5fee3f39953d46bb63bb8a46d40c2f8fb7cc5a3b6cab2bde9721d6e50"
-dependencies = [
- "rustls-pki-types",
-]
-
 [[package]]
 name = "rustls-pki-types"
 version = "1.12.0"
@@ -2250,9 +2285,9 @@ dependencies = [
 
 [[package]]
 name = "rustls-webpki"
-version = "0.103.3"
+version = "0.103.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e4a72fe2bcf7a6ac6fd7d0b9e5cb68aeb7d4c0a0271730218b3e92d43b4eb435"
+checksum = "0a17884ae0c1b773f1ccd2bd4a8c72f16da897310a98b0e84bf349ad5ead92fc"
 dependencies = [
  "ring",
  "rustls-pki-types",
@@ -2261,9 +2296,9 @@ dependencies = [
 
 [[package]]
 name = "rustversion"
-version = "1.0.20"
+version = "1.0.22"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "eded382c5f5f786b989652c49544c4877d9f015cc22e145a5ea8ea66c2921cd2"
+checksum = "b39cdef0fa800fc44525c84ccb54a029961a8215f9619753635a9c0d2538d46d"
 
 [[package]]
 name = "ryu"
@@ -2288,9 +2323,9 @@ checksum = "94143f37725109f92c262ed2cf5e59bce7498c01bcc1502d7b9afe439a4e9f49"
 
 [[package]]
 name = "security-framework"
-version = "3.2.0"
+version = "3.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "271720403f46ca04f7ba6f55d438f8bd878d6b8ca0a1046e8228c4145bcbb316"
+checksum = "80fb1d92c5028aa318b4b8bd7302a5bfcf48be96a37fc6fc790f806b0004ee0c"
 dependencies = [
  "bitflags",
  "core-foundation",
@@ -2343,9 +2378,9 @@ dependencies = [
 
 [[package]]
 name = "serde_json"
-version = "1.0.140"
+version = "1.0.143"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "20068b6e96dc6c9bd23e01df8827e6c7e1f2fddd43c21810382803c136b99373"
+checksum = "d401abef1d108fbd9cbaebc3e46611f4b1021f714a0597a71f41ee463f5f4a5a"
 dependencies = [
  "itoa",
  "memchr",
@@ -2393,9 +2428,9 @@ checksum = "0fda2ff0d084019ba4d7c6f371c95d8fd75ce3524c3cb8fb653a3023f6323e64"
 
 [[package]]
 name = "signal-hook-registry"
-version = "1.4.5"
+version = "1.4.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9203b8055f63a2a00e2f593bb0510367fe707d7ff1e5c872de2f537b339e5410"
+checksum = "b2a4719bff48cee6b39d12c020eeb490953ad2443b7055bd0b21fca26bd8c28b"
 dependencies = [
  "libc",
 ]
@@ -2414,12 +2449,9 @@ checksum = "56199f7ddabf13fe5074ce809e7d3f42b42ae711800501b5b16ea82ad029c39d"
 
 [[package]]
 name = "slab"
-version = "0.4.9"
+version = "0.4.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8f92a496fb766b417c996b9c5e57daf2f7ad3b0bebe1ccfca4856390e3d3bb67"
-dependencies = [
- "autocfg",
-]
+checksum = "7a2ae44ef20feb57a68b23d846850f861394c2e02dc425a50098ae8c90267589"
 
 [[package]]
 name = "slotmap"
@@ -2432,20 +2464,30 @@ dependencies = [
 
 [[package]]
 name = "smallvec"
-version = "1.15.0"
+version = "1.15.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8917285742e9f3e1683f0a9c4e6b57960b7314d0b08d30d1ecd426713ee2eee9"
+checksum = "67b1b7a3b5fe4f1376887184045fcf45c69e92af734b7aaddc05fb777b6fbd03"
 
 [[package]]
 name = "socket2"
-version = "0.5.9"
+version = "0.5.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4f5fd57c80058a56cf5c777ab8a126398ece8e442983605d280a44ce79d0edef"
+checksum = "e22376abed350d73dd1cd119b57ffccad95b4e585a7cda43e286245ce23c0678"
 dependencies = [
  "libc",
  "windows-sys 0.52.0",
 ]
 
+[[package]]
+name = "socket2"
+version = "0.6.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "233504af464074f9d066d7b5416c5f9b894a5862a6506e306f7b816cdd6f1807"
+dependencies = [
+ "libc",
+ "windows-sys 0.59.0",
+]
+
 [[package]]
 name = "spinning_top"
 version = "0.3.0"
@@ -2475,26 +2517,15 @@ checksum = "13c2bddecc57b384dee18652358fb23172facb8a2c51ccc10d74c157bdea3292"
 
 [[package]]
 name = "syn"
-version = "2.0.101"
+version = "2.0.106"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8ce2b7fc941b3a24138a0a7cf8e858bfc6a992e7978a068a5c760deb0ed43caf"
+checksum = "ede7c438028d4436d71104916910f5bb611972c5cfd7f89b8300a8186e6fada6"
 dependencies = [
  "proc-macro2",
  "quote",
  "unicode-ident",
 ]
 
-[[package]]
-name = "syn-mid"
-version = "0.6.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b5dc35bb08dd1ca3dfb09dce91fd2d13294d6711c88897d9a9d60acf39bce049"
-dependencies = [
- "proc-macro2",
- "quote",
- "syn",
-]
-
 [[package]]
 name = "sync_wrapper"
 version = "1.0.2"
@@ -2541,15 +2572,15 @@ dependencies = [
 
 [[package]]
 name = "tempfile"
-version = "3.20.0"
+version = "3.21.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e8a64e3985349f2441a1a9ef0b853f869006c3855f2cda6862a94d26ebb9d6a1"
+checksum = "15b61f8f20e3a6f7e0649d825294eaf317edce30f82cf6026e7e4cb9222a7d1e"
 dependencies = [
  "fastrand",
  "getrandom 0.3.3",
  "once_cell",
  "rustix",
- "windows-sys 0.59.0",
+ "windows-sys 0.60.2",
 ]
 
 [[package]]
@@ -2573,7 +2604,7 @@ dependencies = [
  "slotmap",
  "temporal-sdk-core-api",
  "temporal-sdk-core-protos",
- "thiserror 2.0.12",
+ "thiserror 2.0.15",
  "tokio",
  "tonic",
  "tower",
@@ -2616,7 +2647,7 @@ dependencies = [
  "prometheus",
  "prost",
  "prost-wkt-types",
- "rand 0.9.1",
+ "rand 0.9.2",
  "reqwest",
  "ringbuf",
  "rustfsm",
@@ -2629,7 +2660,7 @@ dependencies = [
  "temporal-client",
  "temporal-sdk-core-api",
  "temporal-sdk-core-protos",
- "thiserror 2.0.12",
+ "thiserror 2.0.15",
  "tokio",
  "tokio-stream",
  "tokio-util",
@@ -2652,7 +2683,7 @@ dependencies = [
  "prost",
  "serde_json",
  "temporal-sdk-core-protos",
- "thiserror 2.0.12",
+ "thiserror 2.0.15",
  "tonic",
  "tracing",
  "tracing-core",
@@ -2671,10 +2702,10 @@ dependencies = [
  "prost-wkt",
  "prost-wkt-build",
  "prost-wkt-types",
- "rand 0.9.1",
+ "rand 0.9.2",
  "serde",
  "serde_json",
- "thiserror 2.0.12",
+ "thiserror 2.0.15",
  "tonic",
  "tonic-build",
  "uuid",
@@ -2698,7 +2729,7 @@ dependencies = [
  "serde_json",
  "temporal-client",
  "temporal-sdk-core",
- "thiserror 2.0.12",
+ "thiserror 2.0.15",
  "tokio",
  "tokio-stream",
  "tonic",
@@ -2723,11 +2754,11 @@ dependencies = [
 
 [[package]]
 name = "thiserror"
-version = "2.0.12"
+version = "2.0.15"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "567b8a2dae586314f7be2a752ec7474332959c6460e02bde30d702a66d488708"
+checksum = "80d76d3f064b981389ecb4b6b7f45a0bf9fdac1d5b9204c7bd6714fecc302850"
 dependencies = [
- "thiserror-impl 2.0.12",
+ "thiserror-impl 2.0.15",
 ]
 
 [[package]]
@@ -2743,9 +2774,9 @@ dependencies = [
 
 [[package]]
 name = "thiserror-impl"
-version = "2.0.12"
+version = "2.0.15"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7f7cf42b4507d8ea322120659672cf1b9dbb93f8f2d4ecfd6e51350ff5b17a1d"
+checksum = "44d29feb33e986b6ea906bd9c3559a856983f92371b3eaa5e83782a351623de0"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -2754,12 +2785,11 @@ dependencies = [
 
 [[package]]
 name = "thread_local"
-version = "1.1.8"
+version = "1.1.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8b9ef9bad013ada3808854ceac7b46812a6465ba368859a37e2100283d2d719c"
+checksum = "f60246a4944f24f6e018aa17cdeffb7818b76356965d03b07d6a9886e8962185"
 dependencies = [
  "cfg-if",
- "once_cell",
 ]
 
 [[package]]
@@ -2793,9 +2823,9 @@ dependencies = [
 
 [[package]]
 name = "tinyvec"
-version = "1.9.0"
+version = "1.10.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "09b3661f17e86524eccd4371ab0429194e0d7c008abb45f7a7495b1719463c71"
+checksum = "bfa5fdc3bce6191a1dbc8c02d5c8bffcf557bafa17c124c5264a458f1b0613fa"
 dependencies = [
  "tinyvec_macros",
 ]
@@ -2808,20 +2838,22 @@ checksum = "1f3ccbac311fea05f86f61904b462b55fb3df8837a366dfc601a0161d0532f20"
 
 [[package]]
 name = "tokio"
-version = "1.45.0"
+version = "1.47.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2513ca694ef9ede0fb23fe71a4ee4107cb102b9dc1930f6d0fd77aae068ae165"
+checksum = "89e49afdadebb872d3145a5638b59eb0691ea23e46ca484037cfab3b76b95038"
 dependencies = [
  "backtrace",
  "bytes",
+ "io-uring",
  "libc",
  "mio",
  "parking_lot",
  "pin-project-lite",
  "signal-hook-registry",
- "socket2",
+ "slab",
+ "socket2 0.6.0",
  "tokio-macros",
- "windows-sys 0.52.0",
+ "windows-sys 0.59.0",
 ]
 
 [[package]]
@@ -2858,9 +2890,9 @@ dependencies = [
 
 [[package]]
 name = "tokio-util"
-version = "0.7.15"
+version = "0.7.16"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "66a539a9ad6d5d281510d5bd368c973d636c02dbf8a67300bfb6b950696ad7df"
+checksum = "14307c986784f72ef81c89db7d9e28d6ac26d16213b109ea501696195e6e3ce5"
 dependencies = [
  "bytes",
  "futures-core",
@@ -2890,7 +2922,7 @@ dependencies = [
  "pin-project",
  "prost",
  "rustls-native-certs",
- "socket2",
+ "socket2 0.5.10",
  "tokio",
  "tokio-rustls",
  "tokio-stream",
@@ -2933,6 +2965,24 @@ dependencies = [
  "tracing",
 ]
 
+[[package]]
+name = "tower-http"
+version = "0.6.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "adc82fd73de2a9722ac5da747f12383d2bfdb93591ee6c58486e0097890f05f2"
+dependencies = [
+ "bitflags",
+ "bytes",
+ "futures-util",
+ "http",
+ "http-body",
+ "iri-string",
+ "pin-project-lite",
+ "tower",
+ "tower-layer",
+ "tower-service",
+]
+
 [[package]]
 name = "tower-layer"
 version = "0.3.3"
@@ -2958,9 +3008,9 @@ dependencies = [
 
 [[package]]
 name = "tracing-attributes"
-version = "0.1.28"
+version = "0.1.30"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "395ae124c09f9e6918a2310af6038fba074bcf474ac352496d5910dd59a2226d"
+checksum = "81383ab64e72a7a8b8e13130c49e3dab29def6d0c7d76a03087b3cf71c5c6903"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -2969,9 +3019,9 @@ dependencies = [
 
 [[package]]
 name = "tracing-core"
-version = "0.1.33"
+version = "0.1.34"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e672c95779cf947c5311f83787af4fa8fffd12fb27e4993211a84bdfd9610f9c"
+checksum = "b9d12581f227e93f094d3af2ae690a574abb8a2b9b7a96e7cfe9647b2b617678"
 dependencies = [
  "once_cell",
  "valuable",
@@ -3079,11 +3129,13 @@ checksum = "b6c140620e7ffbb22c2dee59cafe6084a59b5ffc27a8859a5f0d494b5d52b6be"
 
 [[package]]
 name = "uuid"
-version = "1.16.0"
+version = "1.18.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "458f7a779bf54acc9f347480ac654f68407d3aab21269a6e3c9f922acd9e2da9"
+checksum = "f33196643e165781c20a5ead5582283a7dacbb87855d867fbc2df3f81eddc1be"
 dependencies = [
  "getrandom 0.3.3",
+ "js-sys",
+ "wasm-bindgen",
 ]
 
 [[package]]
@@ -3109,9 +3161,9 @@ dependencies = [
 
 [[package]]
 name = "wasi"
-version = "0.11.0+wasi-snapshot-preview1"
+version = "0.11.1+wasi-snapshot-preview1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9c8d87e72b64a3b4db28d11ce29237c246188f4f51057d65a7eab63b7987e423"
+checksum = "ccf3ec651a847eb01de73ccad15eb7d99f80485de043efb2f370cd654f4ea44b"
 
 [[package]]
 name = "wasi"
@@ -3266,7 +3318,7 @@ checksum = "d2ed2439a290666cd67ecce2b0ffaad89c2a56b976b736e6ece670297897832d"
 dependencies = [
  "windows-implement",
  "windows-interface",
- "windows-result 0.1.2",
+ "windows-result",
  "windows-targets 0.52.6",
 ]
 
@@ -3294,20 +3346,9 @@ dependencies = [
 
 [[package]]
 name = "windows-link"
-version = "0.1.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "76840935b766e1b0a05c0066835fb9ec80071d4c09a16f6bd5f7e655e3c14c38"
-
-[[package]]
-name = "windows-registry"
-version = "0.4.0"
+version = "0.1.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4286ad90ddb45071efd1a66dfa43eb02dd0dfbae1545ad6cc3c51cf34d7e8ba3"
-dependencies = [
- "windows-result 0.3.2",
- "windows-strings",
- "windows-targets 0.53.0",
-]
+checksum = "5e6ad25900d524eaabdbbb96d20b4311e1e7ae1699af4fb28c17ae66c80d798a"
 
 [[package]]
 name = "windows-result"
@@ -3318,24 +3359,6 @@ dependencies = [
  "windows-targets 0.52.6",
 ]
 
-[[package]]
-name = "windows-result"
-version = "0.3.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c64fd11a4fd95df68efcfee5f44a294fe71b8bc6a91993e2791938abcc712252"
-dependencies = [
- "windows-link",
-]
-
-[[package]]
-name = "windows-strings"
-version = "0.3.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "87fa48cc5d406560701792be122a10132491cff9d0aeb23583cc2dcafc847319"
-dependencies = [
- "windows-link",
-]
-
 [[package]]
 name = "windows-sys"
 version = "0.52.0"
@@ -3354,6 +3377,15 @@ dependencies = [
  "windows-targets 0.52.6",
 ]
 
+[[package]]
+name = "windows-sys"
+version = "0.60.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f2f500e4d28234f72040990ec9d39e3a6b950f9f22d3dba18416c35882612bcb"
+dependencies = [
+ "windows-targets 0.53.3",
+]
+
 [[package]]
 name = "windows-targets"
 version = "0.52.6"
@@ -3372,10 +3404,11 @@ dependencies = [
 
 [[package]]
 name = "windows-targets"
-version = "0.53.0"
+version = "0.53.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b1e4c7e8ceaaf9cb7d7507c974735728ab453b67ef8f18febdd7c11fe59dca8b"
+checksum = "d5fe6031c4041849d7c496a8ded650796e7b6ecc19df1a431c1a363342e5dc91"
 dependencies = [
+ "windows-link",
  "windows_aarch64_gnullvm 0.53.0",
  "windows_aarch64_msvc 0.53.0",
  "windows_i686_gnu 0.53.0",
@@ -3499,9 +3532,9 @@ checksum = "ea2f10b9bb0928dfb1b42b65e1f9e36f7f54dbdf08457afefb38afcdec4fa2bb"
 
 [[package]]
 name = "xattr"
-version = "1.5.0"
+version = "1.5.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0d65cbf2f12c15564212d48f4e3dfb87923d25d611f2aed18f4cb23f0413d89e"
+checksum = "af3a19837351dc82ba89f8a125e22a3c475f05aba604acc023d62b2739ae2909"
 dependencies = [
  "libc",
  "rustix",
@@ -3542,18 +3575,18 @@ dependencies = [
 
 [[package]]
 name = "zerocopy"
-version = "0.8.25"
+version = "0.8.26"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a1702d9583232ddb9174e01bb7c15a2ab8fb1bc6f227aa1233858c351a3ba0cb"
+checksum = "1039dd0d3c310cf05de012d8a39ff557cb0d23087fd44cad61df08fc31907a2f"
 dependencies = [
  "zerocopy-derive",
 ]
 
 [[package]]
 name = "zerocopy-derive"
-version = "0.8.25"
+version = "0.8.26"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "28a6e20d751156648aa063f3800b706ee209a32c0b4d9f24be3d980b01be55ef"
+checksum = "9ecf5b4cc5364572d7f4c329661bcc82724222973f2cab6f050a4e5c22f75181"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -3614,9 +3647,9 @@ dependencies = [
 
 [[package]]
 name = "zerovec"
-version = "0.11.2"
+version = "0.11.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4a05eb080e015ba39cc9e23bbe5e7fb04d5fb040350f99f34e338d5fdd294428"
+checksum = "e7aa2bd55086f1ab526693ecbe444205da57e25f4489879da80635a46d90e73b"
 dependencies = [
  "yoke",
  "zerofrom",
@@ -3636,9 +3669,9 @@ dependencies = [
 
 [[package]]
 name = "zip"
-version = "2.6.1"
+version = "2.4.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1dcb24d0152526ae49b9b96c1dcf71850ca1e0b882e4e28ed898a93c41334744"
+checksum = "fabe6324e908f85a1c52063ce7aa26b68dcb7eb6dbc83a2d148403c9bc3eba50"
 dependencies = [
  "aes",
  "arbitrary",
@@ -3647,6 +3680,7 @@ dependencies = [
  "crc32fast",
  "crossbeam-utils",
  "deflate64",
+ "displaydoc",
  "flate2",
  "getrandom 0.3.3",
  "hmac",
@@ -3655,6 +3689,7 @@ dependencies = [
  "memchr",
  "pbkdf2",
  "sha1",
+ "thiserror 2.0.15",
  "time",
  "xz2",
  "zeroize",
diff --git a/packages/test/src/helpers-integration-multi-codec.ts b/packages/test/src/helpers-integration-multi-codec.ts
index 68ed455f3..c021ffc0f 100644
--- a/packages/test/src/helpers-integration-multi-codec.ts
+++ b/packages/test/src/helpers-integration-multi-codec.ts
@@ -7,7 +7,7 @@ import { TestWorkflowEnvironment } from '@temporalio/testing';
 import { ConnectionInjectorInterceptor } from './activities/interceptors';
 import {
   configurableHelpers,
-  createLocalTestEnvironment,
+  createTestWorkflowEnvironment,
   makeConfigurableEnvironmentTestFn,
 } from './helpers-integration';
 import { ByteSkewerPayloadCodec, Worker } from './helpers';
@@ -40,7 +40,7 @@ export function makeTestFn(makeBundle: () => Promise<WorkflowBundle>): TestFn<Te
             failureConverter: defaultFailureConverter,
           };
 
-          const env = await createLocalTestEnvironment({
+          const env = await createTestWorkflowEnvironment({
             client: { dataConverter },
           });
 
diff --git a/packages/test/src/helpers-integration.ts b/packages/test/src/helpers-integration.ts
index 70af5d574..8cefb571e 100644
--- a/packages/test/src/helpers-integration.ts
+++ b/packages/test/src/helpers-integration.ts
@@ -145,14 +145,7 @@ export function makeTestFunction<C extends Context = Context>(opts: {
     recordedLogs: opts.recordedLogs,
     runtimeOpts: opts.runtimeOpts,
     createTestContext: async (_t: ExecutionContext): Promise<C> => {
-      let env: TestWorkflowEnvironment;
-      if (process.env.TEMPORAL_SERVICE_ADDRESS) {
-        env = await TestWorkflowEnvironment.createFromExistingServer({
-          address: process.env.TEMPORAL_SERVICE_ADDRESS,
-        });
-      } else {
-        env = await createLocalTestEnvironment(opts.workflowEnvironmentOpts);
-      }
+      const env = await createTestWorkflowEnvironment(opts.workflowEnvironmentOpts);
       return {
         workflowBundle: await createTestWorkflowBundle({
           workflowsPath: opts.workflowsPath,
@@ -167,6 +160,20 @@ export function makeTestFunction<C extends Context = Context>(opts: {
   });
 }
 
+export async function createTestWorkflowEnvironment(
+  opts?: LocalTestWorkflowEnvironmentOptions
+): Promise<TestWorkflowEnvironment> {
+  let env: TestWorkflowEnvironment;
+  if (process.env.TEMPORAL_SERVICE_ADDRESS) {
+    env = await TestWorkflowEnvironment.createFromExistingServer({
+      address: process.env.TEMPORAL_SERVICE_ADDRESS,
+    });
+  } else {
+    env = await createLocalTestEnvironment(opts);
+  }
+  return env;
+}
+
 export interface Helpers {
   taskQueue: string;
   createWorker(opts?: Partial<WorkerOptions>): Promise<Worker>;
diff --git a/packages/test/src/helpers.ts b/packages/test/src/helpers.ts
index 0e75c01fb..ea0729701 100644
--- a/packages/test/src/helpers.ts
+++ b/packages/test/src/helpers.ts
@@ -308,3 +308,14 @@ export async function saveHistory(fname: string, history: iface.temporal.api.his
   const fpath = path.resolve(__dirname, `../history_files/${fname}`);
   await fs.writeFile(fpath, historyToJSON(history));
 }
+
+export function approximatelyEqual(
+  a: number | null | undefined,
+  b: number | null | undefined,
+  tolerance = 0.000001
+): boolean {
+  if (a === null || a === undefined || b === null || b === undefined) {
+    return false;
+  }
+  return Math.abs(a - b) < tolerance;
+}
diff --git a/packages/test/src/test-integration-split-three.ts b/packages/test/src/test-integration-split-three.ts
index 5539a5765..8fa1a29d0 100644
--- a/packages/test/src/test-integration-split-three.ts
+++ b/packages/test/src/test-integration-split-three.ts
@@ -8,7 +8,7 @@ import { configMacro, makeTestFn } from './helpers-integration-multi-codec';
 import { configurableHelpers } from './helpers-integration';
 import { withZeroesHTTPServer } from './zeroes-http-server';
 import * as activities from './activities';
-import { cleanOptionalStackTrace } from './helpers';
+import { approximatelyEqual, cleanOptionalStackTrace } from './helpers';
 import * as workflows from './workflows';
 
 const test = makeTestFn(() => bundleWorkflowCode({ workflowsPath: require.resolve('./workflows') }));
@@ -151,7 +151,7 @@ test(
     const worker = await createWorkerWithDefaults(t, { activities });
     const handle = await startWorkflow(workflows.priorityWorkflow, {
       args: [false, 1],
-      priority: { priorityKey: 1 },
+      priority: { priorityKey: 1, fairnessKey: 'main-workflow', fairnessWeight: 3.0 },
     });
     await worker.runUntil(handle.result());
     let firstChild = true;
@@ -161,19 +161,28 @@ test(
       switch (event.eventType) {
         case temporal.api.enums.v1.EventType.EVENT_TYPE_WORKFLOW_EXECUTION_STARTED:
           t.deepEqual(event.workflowExecutionStartedEventAttributes?.priority?.priorityKey, 1);
+          t.deepEqual(event.workflowExecutionStartedEventAttributes?.priority?.fairnessKey, 'main-workflow');
+          t.deepEqual(event.workflowExecutionStartedEventAttributes?.priority?.fairnessWeight, 3.0);
           break;
         case temporal.api.enums.v1.EventType.EVENT_TYPE_START_CHILD_WORKFLOW_EXECUTION_INITIATED: {
-          const pri = event.startChildWorkflowExecutionInitiatedEventAttributes?.priority?.priorityKey;
+          const priority = event.startChildWorkflowExecutionInitiatedEventAttributes?.priority;
           if (firstChild) {
-            t.deepEqual(pri, 4);
+            t.deepEqual(priority?.priorityKey, 4);
+            t.deepEqual(priority?.fairnessKey, 'child-workflow-1');
+            t.deepEqual(priority?.fairnessWeight, 2.5);
             firstChild = false;
           } else {
-            t.deepEqual(pri, 2);
+            t.deepEqual(priority?.priorityKey, 2);
+            t.deepEqual(priority?.fairnessKey, 'child-workflow-2');
+            t.deepEqual(priority?.fairnessWeight, 1.0);
           }
           break;
         }
         case temporal.api.enums.v1.EventType.EVENT_TYPE_ACTIVITY_TASK_SCHEDULED:
           t.deepEqual(event.activityTaskScheduledEventAttributes?.priority?.priorityKey, 5);
+          t.deepEqual(event.activityTaskScheduledEventAttributes?.priority?.fairnessKey, 'fair-activity');
+          // For some insane reason when proto reads this event it mangles the number to 4.19999999 something. Thanks Javascript.
+          t.assert(approximatelyEqual(event.activityTaskScheduledEventAttributes?.priority?.fairnessWeight, 4.2));
           break;
       }
     }
@@ -184,7 +193,6 @@ test('workflow start without priorities sees undefined for the key', configMacro
   const { env, createWorkerWithDefaults } = config;
   const { startWorkflow } = configurableHelpers(t, t.context.workflowBundle, env);
   const worker = await createWorkerWithDefaults(t, { activities });
-  console.log('STARTING WORKFLOW');
 
   const handle1 = await startWorkflow(workflows.priorityWorkflow, {
     args: [true, undefined],
diff --git a/packages/test/src/test-sinks.ts b/packages/test/src/test-sinks.ts
index 138b4d01c..a7ed18b88 100644
--- a/packages/test/src/test-sinks.ts
+++ b/packages/test/src/test-sinks.ts
@@ -148,6 +148,8 @@ if (RUN_INTEGRATION_TESTS) {
         isReplaying: false,
       } as UnsafeWorkflowInfo,
       priority: {
+        fairnessKey: undefined,
+        fairnessWeight: undefined,
         priorityKey: undefined,
       },
     };
diff --git a/packages/test/src/workflows/priority.ts b/packages/test/src/workflows/priority.ts
index 3e99685a8..72fce0fa5 100644
--- a/packages/test/src/workflows/priority.ts
+++ b/packages/test/src/workflows/priority.ts
@@ -1,7 +1,10 @@
 import { executeChild, proxyActivities, startChild, workflowInfo } from '@temporalio/workflow';
 import type * as activities from '../activities';
 
-const { echo } = proxyActivities<typeof activities>({ startToCloseTimeout: '5s', priority: { priorityKey: 5 } });
+const { echo } = proxyActivities<typeof activities>({
+  startToCloseTimeout: '5s',
+  priority: { priorityKey: 5, fairnessKey: 'fair-activity', fairnessWeight: 4.2 },
+});
 
 export async function priorityWorkflow(stopAfterCheck: boolean, expectedPriority: number | undefined): Promise<void> {
   const info = workflowInfo();
@@ -17,9 +20,15 @@ export async function priorityWorkflow(stopAfterCheck: boolean, expectedPriority
     return;
   }
 
-  await executeChild(priorityWorkflow, { args: [true, 4], priority: { priorityKey: 4 } });
+  await executeChild(priorityWorkflow, {
+    args: [true, 4],
+    priority: { priorityKey: 4, fairnessKey: 'child-workflow-1', fairnessWeight: 2.5 },
+  });
 
-  const child = await startChild(priorityWorkflow, { args: [true, 2], priority: { priorityKey: 2 } });
+  const child = await startChild(priorityWorkflow, {
+    args: [true, 2],
+    priority: { priorityKey: 2, fairnessKey: 'child-workflow-2', fairnessWeight: 1.0 },
+  });
   await child.result();
 
   await echo('hi');