diff --git a/cyw43/CHANGELOG.md b/cyw43/CHANGELOG.md
index 1045fd30b4..8fc74df326 100644
--- a/cyw43/CHANGELOG.md
+++ b/cyw43/CHANGELOG.md
@@ -12,6 +12,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Bump bt-hci to 0.6.0.
 - Add error handling to HCI transport implementation.
 - Reset WPA security on AP creation #4709
+- Upgrade heapless to 0.9, drop support for defmt-03 in favor of defmt (1.x).
+- Upgrade embedded-io-async to 0.7.x.
 
 ## 0.5.0 - 2025-08-28
 
diff --git a/cyw43/Cargo.toml b/cyw43/Cargo.toml
index 3144276115..9c094ef76e 100644
--- a/cyw43/Cargo.toml
+++ b/cyw43/Cargo.toml
@@ -10,7 +10,7 @@ repository = "https://github.com/embassy-rs/embassy"
 documentation = "https://docs.embassy.dev/cyw43"
 
 [features]
-defmt = ["dep:defmt", "heapless/defmt-03", "embassy-time/defmt", "bt-hci?/defmt", "embedded-io-async?/defmt-03"]
+defmt = ["dep:defmt", "heapless/defmt", "embassy-time/defmt", "bt-hci?/defmt", "embedded-io-async?/defmt"]
 log = ["dep:log"]
 bluetooth = ["dep:bt-hci", "dep:embedded-io-async"]
 
@@ -32,10 +32,10 @@ futures = { version = "0.3.17", default-features = false, features = ["async-awa
 
 embedded-hal-1 = { package = "embedded-hal", version = "1.0" }
 num_enum = { version = "0.5.7", default-features = false }
-heapless = "0.8.0"
+heapless = "0.9"
 
 # Bluetooth deps
-embedded-io-async = { version = "0.6.0", optional = true }
+embedded-io-async = { version = "0.7", optional = true }
 bt-hci = { version = "0.6.0", optional = true }
 
 [package.metadata.embassy]
diff --git a/embassy-imxrt/CHANGELOG.md b/embassy-imxrt/CHANGELOG.md
index 7042ad14c0..4bcd3e44fe 100644
--- a/embassy-imxrt/CHANGELOG.md
+++ b/embassy-imxrt/CHANGELOG.md
@@ -9,3 +9,4 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ## Unreleased - ReleaseDate
 
 - First release with changelog.
+- Upgrade heapless to 0.9
diff --git a/embassy-imxrt/Cargo.toml b/embassy-imxrt/Cargo.toml
index c47756f102..7b32298ee3 100644
--- a/embassy-imxrt/Cargo.toml
+++ b/embassy-imxrt/Cargo.toml
@@ -85,8 +85,8 @@ cfg-if = "1.0.0"
 cortex-m-rt = ">=0.7.3,<0.8"
 cortex-m = "0.7.6"
 critical-section = "1.1"
-embedded-io = { version = "0.6.1" }
-embedded-io-async = { version = "0.6.1" }
+embedded-io = { version = "0.7"  }
+embedded-io-async = { version = "0.7" }
 fixed = "1.23.1"
 
 rand-core-06 = { package = "rand_core", version = "0.6" }
diff --git a/embassy-mspm0/CHANGELOG.md b/embassy-mspm0/CHANGELOG.md
index 6972a84721..0307561ad7 100644
--- a/embassy-mspm0/CHANGELOG.md
+++ b/embassy-mspm0/CHANGELOG.md
@@ -19,4 +19,5 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - feat: Add i2c target implementation (#4605)
 - fix: group irq handlers must check for NO_INTR (#4785)
 - feat: Add read_reset_cause function
-- feat: Add module Mathacl & example for mspm0g3507 (#4897)
\ No newline at end of file
+- feat: Add module Mathacl & example for mspm0g3507 (#4897)
+- Upgrade embedded-io-async to 0.7.x.
diff --git a/embassy-mspm0/Cargo.toml b/embassy-mspm0/Cargo.toml
index 254e0209b3..68b8d36182 100644
--- a/embassy-mspm0/Cargo.toml
+++ b/embassy-mspm0/Cargo.toml
@@ -61,8 +61,8 @@ embedded-hal-02 = { package = "embedded-hal", version = "0.2.6", features = ["un
 embedded-hal = { version = "1.0" }
 embedded-hal-nb = { version = "1.0" }
 embedded-hal-async = { version = "1.0" }
-embedded-io = "0.6.1"
-embedded-io-async = "0.6.1"
+embedded-io = "0.7"
+embedded-io-async = "0.7"
 
 defmt = { version = "1.0.1", optional = true }
 fixed = "1.29"
diff --git a/embassy-mspm0/src/uart/buffered.rs b/embassy-mspm0/src/uart/buffered.rs
index 89e6bcc7b0..d1b75b177c 100644
--- a/embassy-mspm0/src/uart/buffered.rs
+++ b/embassy-mspm0/src/uart/buffered.rs
@@ -436,6 +436,10 @@ impl embedded_io_async::Write for BufferedUart<'_> {
     async fn write(&mut self, buf: &[u8]) -> Result<usize, Self::Error> {
         self.tx.write_inner(buf).await
     }
+
+    async fn flush(&mut self) -> Result<(), Self::Error> {
+        self.tx.flush_inner().await
+    }
 }
 
 impl embedded_io_async::Write for BufferedUartTx<'_> {
diff --git a/embassy-net-adin1110/CHANGELOG.md b/embassy-net-adin1110/CHANGELOG.md
index 1804d1313f..d1c35c0f6b 100644
--- a/embassy-net-adin1110/CHANGELOG.md
+++ b/embassy-net-adin1110/CHANGELOG.md
@@ -11,3 +11,5 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ## 0.3.1 - 2025-08-26
 
 - First release with changelog.
+- Upgrade heapless to 0.9, drop support for defmt-03 in favor of defmt (1.x).
+- Upgrade embedded-io-async to 0.7.x.
diff --git a/embassy-net-adin1110/Cargo.toml b/embassy-net-adin1110/Cargo.toml
index a5655870f5..aaea89d52a 100644
--- a/embassy-net-adin1110/Cargo.toml
+++ b/embassy-net-adin1110/Cargo.toml
@@ -10,7 +10,7 @@ repository = "https://github.com/embassy-rs/embassy"
 documentation = "https://docs.embassy.dev/embassy-net-adin1110"
 
 [dependencies]
-heapless = "0.8"
+heapless = "0.9"
 defmt = { version = "1.0.1", optional = true }
 log = { version = "0.4", default-features = false, optional = true }
 embedded-hal-1 = { package = "embedded-hal", version = "1.0" }
@@ -29,7 +29,7 @@ critical-section = { version = "1.1.2", features = ["std"] }
 futures-test = "0.3.28"
 
 [features]
-defmt = ["dep:defmt", "embedded-hal-1/defmt-03"]
+defmt = ["dep:defmt", "embedded-hal-1/defmt"]
 log = ["dep:log"]
 
 [package.metadata.embassy_docs]
diff --git a/embassy-net-esp-hosted/CHANGELOG.md b/embassy-net-esp-hosted/CHANGELOG.md
index d8b912295b..a4b8c562a8 100644
--- a/embassy-net-esp-hosted/CHANGELOG.md
+++ b/embassy-net-esp-hosted/CHANGELOG.md
@@ -11,6 +11,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Add an `Interface` trait to allow using other interface transports.
 - Switch to `micropb` for protobuf.
 - Update protos to latest `esp-hosted-fg`.
+- Upgrade heapless to 0.9, drop support for defmt-03 in favor of defmt (1.x).
+- Upgrade embedded-io-async to 0.7.x.
 
 ## 0.2.1 - 2025-08-26
 
diff --git a/embassy-net-esp-hosted/Cargo.toml b/embassy-net-esp-hosted/Cargo.toml
index 81096b0242..b9c373cd80 100644
--- a/embassy-net-esp-hosted/Cargo.toml
+++ b/embassy-net-esp-hosted/Cargo.toml
@@ -10,7 +10,7 @@ repository = "https://github.com/embassy-rs/embassy"
 documentation = "https://docs.embassy.dev/embassy-net-esp-hosted"
 
 [features]
-defmt = ["dep:defmt", "heapless/defmt-03"]
+defmt = ["dep:defmt", "heapless/defmt"]
 log = ["dep:log"]
 
 [dependencies]
@@ -26,7 +26,7 @@ embedded-hal = { version = "1.0" }
 embedded-hal-async = { version = "1.0" }
 
 micropb = { version = "0.4.0", default-features = false, features = ["container-heapless", "encode", "decode"] }
-heapless = "0.8"
+heapless = "0.9"
 
 [package.metadata.embassy_docs]
 src_base = "https://github.com/embassy-rs/embassy/blob/embassy-net-esp-hosted-v$VERSION/embassy-net-esp-hosted/src/"
diff --git a/embassy-net-nrf91/CHANGELOG.md b/embassy-net-nrf91/CHANGELOG.md
index 11974ac04d..9c63644fd5 100644
--- a/embassy-net-nrf91/CHANGELOG.md
+++ b/embassy-net-nrf91/CHANGELOG.md
@@ -9,6 +9,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ## Unreleased - ReleaseDate
 
 - changed: updated to nrf-pac with nrf52/nrf53/nrf91 register layout more similar to nrf54
+- Upgrade heapless to 0.9, drop support for defmt-03 in favor of defmt (1.x).
+- Upgrade embedded-io(-async) to 0.7.x.
 
 ## 0.1.1 - 2025-08-14
 
diff --git a/embassy-net-nrf91/Cargo.toml b/embassy-net-nrf91/Cargo.toml
index 8cf11f1fb7..cfc130d6c6 100644
--- a/embassy-net-nrf91/Cargo.toml
+++ b/embassy-net-nrf91/Cargo.toml
@@ -11,7 +11,7 @@ documentation = "https://docs.embassy.dev/embassy-net-nrf91"
 publish = false
 
 [features]
-defmt = ["dep:defmt", "heapless/defmt-03"]
+defmt = ["dep:defmt", "heapless/defmt"]
 log = ["dep:log"]
 
 [dependencies]
@@ -26,8 +26,8 @@ embassy-sync = { version = "0.7.2", path = "../embassy-sync" }
 embassy-futures = { version = "0.1.2", path = "../embassy-futures" }
 embassy-net-driver-channel = { version = "0.3.2", path = "../embassy-net-driver-channel" }
 
-heapless = "0.8"
-embedded-io = "0.6.1"
+heapless = "0.9"
+embedded-io = "0.7"
 at-commands = "0.5.4"
 
 [package.metadata.embassy]
diff --git a/embassy-net-ppp/CHANGELOG.md b/embassy-net-ppp/CHANGELOG.md
index 946206143e..bd818ecc48 100644
--- a/embassy-net-ppp/CHANGELOG.md
+++ b/embassy-net-ppp/CHANGELOG.md
@@ -14,6 +14,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 - Update `ppproto` to v0.2.
 - Use `core::net` IP types for IPv4 configuration instead of a custom type.
+- Upgrade heapless to 0.9, drop support for defmt-03 in favor of defmt (1.x).
+- Upgrade embedded-io-async to 0.7.x.
 
 ## 0.1.0 - 2024-01-12
 
diff --git a/embassy-net-ppp/Cargo.toml b/embassy-net-ppp/Cargo.toml
index 45ee2f6b57..bd5601a3c3 100644
--- a/embassy-net-ppp/Cargo.toml
+++ b/embassy-net-ppp/Cargo.toml
@@ -17,7 +17,7 @@ log = ["dep:log", "ppproto/log"]
 defmt = { version = "1.0.1", optional = true }
 log = { version = "0.4.14", optional = true }
 
-embedded-io-async = { version = "0.6.1" }
+embedded-io-async = { version = "0.7" }
 embassy-net-driver-channel = { version = "0.3.2", path = "../embassy-net-driver-channel" }
 embassy-futures = { version = "0.1.2", path = "../embassy-futures" }
 ppproto = { version = "0.2.1"}
diff --git a/embassy-net/CHANGELOG.md b/embassy-net/CHANGELOG.md
index 40f720d0de..bf0406cbff 100644
--- a/embassy-net/CHANGELOG.md
+++ b/embassy-net/CHANGELOG.md
@@ -9,6 +9,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ## Unreleased - ReleaseDate
 
 - tcp: Add `set_nagle_enabled()` to control TcpSocket nagle algorithm.
+- Upgrade heapless to 0.9, drop support for defmt-03 in favor of defmt (1.x).
+- Upgrade embedded-io-async to 0.7.x.
 
 ## 0.7.1 - 2025-08-26
 
diff --git a/embassy-net/Cargo.toml b/embassy-net/Cargo.toml
index 4c8075c430..40f4b25855 100644
--- a/embassy-net/Cargo.toml
+++ b/embassy-net/Cargo.toml
@@ -52,7 +52,7 @@ features = ["defmt", "tcp", "udp", "raw", "dns", "icmp", "dhcpv4", "proto-ipv6",
 
 [features]
 ## Enable defmt
-defmt = ["dep:defmt", "smoltcp/defmt", "embassy-net-driver/defmt", "embassy-time/defmt", "heapless/defmt-03", "defmt?/ip_in_core"]
+defmt = ["dep:defmt", "smoltcp/defmt", "embassy-net-driver/defmt", "embassy-time/defmt", "heapless/defmt", "defmt?/ip_in_core"]
 ## Enable log
 log = ["dep:log"]
 
@@ -109,9 +109,9 @@ smoltcp = { version = "0.12.0", default-features = false, features = [
 embassy-net-driver = { version = "0.2.0", path = "../embassy-net-driver" }
 embassy-time = { version = "0.5.0", path = "../embassy-time" }
 embassy-sync = { version = "0.7.2", path = "../embassy-sync" }
-embedded-io-async = { version = "0.6.1" }
+embedded-io-async = { version = "0.7" }
 
 managed = { version = "0.8.0", default-features = false, features = [ "map" ] }
-heapless = { version = "0.8", default-features = false }
+heapless = { version = "0.9", default-features = false }
 embedded-nal-async = "0.8.0"
 document-features = "0.2.7"
diff --git a/embassy-nrf/CHANGELOG.md b/embassy-nrf/CHANGELOG.md
index 5657ddcfbd..3e3daef630 100644
--- a/embassy-nrf/CHANGELOG.md
+++ b/embassy-nrf/CHANGELOG.md
@@ -28,6 +28,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - bugfix: use correct flash size for nRF54l
 - changed: add workaround for anomaly 66 on nrf52
 - added: expose PPI events available on SPIS peripheral
+- changed: Upgrade heapless to 0.9, drop support for defmt-03 in favor of defmt (1.x).
+- changed: Upgrade embedded-io-async to 0.7.x.
 - added: add basic GRTC time driver support for nRF54L
 
 ## 0.8.0 - 2025-09-30
diff --git a/embassy-nrf/Cargo.toml b/embassy-nrf/Cargo.toml
index f73772682a..7186d8bb24 100644
--- a/embassy-nrf/Cargo.toml
+++ b/embassy-nrf/Cargo.toml
@@ -196,8 +196,8 @@ embassy-futures = { version = "0.1.2", path = "../embassy-futures", optional = t
 embedded-hal-02 = { package = "embedded-hal", version = "0.2.6", features = ["unproven"] }
 embedded-hal-1 = { package = "embedded-hal", version = "1.0" }
 embedded-hal-async = { version = "1.0" }
-embedded-io = { version = "0.6.0" }
-embedded-io-async = { version = "0.6.1" }
+embedded-io = { version = "0.7"  }
+embedded-io-async = { version = "0.7" }
 
 rand-core-06 = { package = "rand_core", version = "0.6" }
 rand-core-09 = { package = "rand_core", version = "0.9" }
diff --git a/embassy-nxp/CHANGELOG.md b/embassy-nxp/CHANGELOG.md
index e6f117da4c..44ed0d3224 100644
--- a/embassy-nxp/CHANGELOG.md
+++ b/embassy-nxp/CHANGELOG.md
@@ -7,6 +7,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 <!-- next-header -->
 ## Unreleased - ReleaseDate
+- Upgrade embedded-io to 0.7.x.
 - Codegen using `nxp-pac` metadata
 - LPC55: PWM simple
 - LPC55: Move ALT definitions for USART to TX/RX pin impls. 
diff --git a/embassy-nxp/Cargo.toml b/embassy-nxp/Cargo.toml
index b78c26c77c..dbacc013b0 100644
--- a/embassy-nxp/Cargo.toml
+++ b/embassy-nxp/Cargo.toml
@@ -35,7 +35,7 @@ log = { version = "0.4.27", optional = true }
 embassy-time = { version = "0.5.0", path = "../embassy-time", optional = true }
 embassy-time-driver = { version = "0.2.1", path = "../embassy-time-driver", optional = true }
 embassy-time-queue-utils = { version = "0.3.0", path = "../embassy-time-queue-utils", optional = true }
-embedded-io = "0.6.1"
+embedded-io = "0.7"
 embedded-hal-02 = { package = "embedded-hal", version = "0.2.6", features = ["unproven"] }
 ## Chip dependencies
 nxp-pac = { version = "0.1.0", optional = true, git = "https://github.com/i509VCB/nxp-pac", rev = "af5122e1cbe1483833c5d2e5af96b26a34ed5d62"}
diff --git a/embassy-rp/CHANGELOG.md b/embassy-rp/CHANGELOG.md
index 7480b729f7..ddb5fcd69c 100644
--- a/embassy-rp/CHANGELOG.md
+++ b/embassy-rp/CHANGELOG.md
@@ -20,6 +20,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Add PIO::Ws2812 color order support
 - Add TX-only, no SCK SPI support
 - Remove atomic-polyfill with critical-section instead ([#4948](https://github.com/embassy-rs/embassy/pull/4948))
+- Upgrade heapless to 0.9, drop support for defmt-03 in favor of defmt (1.x).
+- Upgrade embedded-io-async to 0.7.x.
 
 ## 0.8.0 - 2025-08-26
 
diff --git a/embassy-rp/Cargo.toml b/embassy-rp/Cargo.toml
index 421f0b0f64..6313c32e61 100644
--- a/embassy-rp/Cargo.toml
+++ b/embassy-rp/Cargo.toml
@@ -167,8 +167,8 @@ cortex-m-rt = ">=0.6.15,<0.8"
 cortex-m = "0.7.6"
 critical-section = "1.2.0"
 chrono = { version = "0.4", default-features = false, optional = true }
-embedded-io = { version = "0.6.1" }
-embedded-io-async = { version = "0.6.1" }
+embedded-io = { version = "0.7"  }
+embedded-io-async = { version = "0.7" }
 embedded-storage = { version = "0.3" }
 embedded-storage-async = { version = "0.4.1" }
 fixed = "1.28.0"
diff --git a/embassy-stm32-wpan/CHANGELOG.md b/embassy-stm32-wpan/CHANGELOG.md
index eb17856fc3..48449c88a4 100644
--- a/embassy-stm32-wpan/CHANGELOG.md
+++ b/embassy-stm32-wpan/CHANGELOG.md
@@ -11,3 +11,4 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - wpan: restructure hil and test wpan mac
 - restructure to allow embassy net driver to work.
 - First release with changelog.
+- Upgrade heapless to 0.9
diff --git a/embassy-stm32-wpan/Cargo.toml b/embassy-stm32-wpan/Cargo.toml
index 05d76f4a61..6bc8a1fbca 100644
--- a/embassy-stm32-wpan/Cargo.toml
+++ b/embassy-stm32-wpan/Cargo.toml
@@ -39,7 +39,7 @@ defmt = { version = "1.0.1", optional = true }
 log = { version = "0.4.17", optional = true }
 
 cortex-m = "0.7.6"
-heapless = "0.8"
+heapless = "0.9"
 aligned = "0.4.1"
 critical-section = "1.1"
 
diff --git a/embassy-stm32/CHANGELOG.md b/embassy-stm32/CHANGELOG.md
index 4c38b0add3..9eadf9230b 100644
--- a/embassy-stm32/CHANGELOG.md
+++ b/embassy-stm32/CHANGELOG.md
@@ -84,6 +84,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - removal: ExtiInput no longer accepts AnyPin/AnyChannel; AnyChannel removed entirely
 - fix: build script ensures EXTI2_TSC is listed as the IRQ of EXTI2 even if the PAC doesn't
 - feat: stm32/lcd: added implementation
+- Upgrade heapless to 0.9, drop support for defmt-03 in favor of defmt (1.x).
+- Upgrade embedded-io-async to 0.7.x.
 
 ## 0.4.0 - 2025-08-26
 
diff --git a/embassy-stm32/Cargo.toml b/embassy-stm32/Cargo.toml
index e10409112d..cb189b8b5c 100644
--- a/embassy-stm32/Cargo.toml
+++ b/embassy-stm32/Cargo.toml
@@ -184,8 +184,8 @@ vcell = "0.1.3"
 nb = "1.0.0"
 stm32-fmc = "0.4.0"
 cfg-if = "1.0.0"
-embedded-io = { version = "0.6.0" }
-embedded-io-async = { version = "0.6.1" }
+embedded-io = { version = "0.7"  }
+embedded-io-async = { version = "0.7" }
 chrono = { version = "^0.4", default-features = false, optional = true }
 bit_field = "0.10.2"
 trait-set = "0.3.0"
@@ -228,7 +228,7 @@ defmt = [
     "embassy-sync/defmt",
     "embassy-embedded-hal/defmt",
     "embassy-hal-internal/defmt",
-    "embedded-io-async/defmt-03",
+    "embedded-io-async/defmt",
     "embassy-usb-driver/defmt",
     "embassy-net-driver/defmt",
     "embassy-time?/defmt",
diff --git a/embassy-sync/CHANGELOG.md b/embassy-sync/CHANGELOG.md
index 242b8b7ab4..df7e5efce8 100644
--- a/embassy-sync/CHANGELOG.md
+++ b/embassy-sync/CHANGELOG.md
@@ -9,6 +9,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ## Unreleased - ReleaseDate
 - Fix wakers getting dropped by `Signal::reset`
 - Remove `Sized` trait bound from `MutexGuard::map`
+- Upgrade heapless to 0.9, drop support for defmt-03 in favor of defmt (1.x).
+- Upgrade embedded-io-async to 0.7.x.
 
 ## 0.7.2 - 2025-08-26
 
diff --git a/embassy-sync/Cargo.toml b/embassy-sync/Cargo.toml
index 0c28cec7d6..4e94e3babc 100644
--- a/embassy-sync/Cargo.toml
+++ b/embassy-sync/Cargo.toml
@@ -39,9 +39,9 @@ log = { version = "0.4.14", optional = true }
 futures-sink = { version = "0.3", default-features = false, features = [] }
 futures-core = { version = "0.3.31", default-features = false }
 critical-section = "1.1"
-heapless = "0.8"
+heapless = "0.9"
 cfg-if = "1.0.0"
-embedded-io-async = { version = "0.6.1" }
+embedded-io-async = { version = "0.7" }
 
 [dev-dependencies]
 futures-executor = { version = "0.3.17", features = [ "thread-pool" ] }
diff --git a/embassy-time-queue-utils/CHANGELOG.md b/embassy-time-queue-utils/CHANGELOG.md
index 03d89f9a74..4198943acb 100644
--- a/embassy-time-queue-utils/CHANGELOG.md
+++ b/embassy-time-queue-utils/CHANGELOG.md
@@ -7,6 +7,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 <!-- next-header -->
 ## Unreleased - ReleaseDate
+- Upgrade heapless to 0.9, drop support for defmt-03 in favor of defmt (1.x).
+- Upgrade embedded-io-async to 0.7.x.
 
 ## 0.3.0 - 2025-08-26
 
diff --git a/embassy-time-queue-utils/Cargo.toml b/embassy-time-queue-utils/Cargo.toml
index 8da30c544a..4ad9bdddc4 100644
--- a/embassy-time-queue-utils/Cargo.toml
+++ b/embassy-time-queue-utils/Cargo.toml
@@ -21,7 +21,7 @@ categories = [
 links = "embassy-time-queue"
 
 [dependencies]
-heapless = "0.8"
+heapless = "0.9"
 embassy-executor-timer-queue = { version = "0.1", path = "../embassy-executor-timer-queue", features = ["timer-item-size-6-words"] }
 
 [features]
diff --git a/embassy-time/CHANGELOG.md b/embassy-time/CHANGELOG.md
index 17f8a38378..999e675226 100644
--- a/embassy-time/CHANGELOG.md
+++ b/embassy-time/CHANGELOG.md
@@ -10,6 +10,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 - Add as_nanos and from_nanos where missing
 - Added 375KHz tick rate support
+- Upgrade heapless to 0.9, drop support for defmt-03 in favor of defmt (1.x).
+- Upgrade embedded-io-async to 0.7.x.
 
 ## 0.5.0 - 2025-08-26
 
diff --git a/embassy-usb-driver/CHANGELOG.md b/embassy-usb-driver/CHANGELOG.md
index 71768d7e56..29469588a4 100644
--- a/embassy-usb-driver/CHANGELOG.md
+++ b/embassy-usb-driver/CHANGELOG.md
@@ -9,6 +9,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ## Unreleased - ReleaseDate
 
 - Add `EndpointOut::read_data()` and `EndpointIn::write_data()` provided methods.
+- Upgrade heapless to 0.9, drop support for defmt-03 in favor of defmt (1.x).
+- Upgrade embedded-io-async to 0.7.x.
 
 ## 0.2.0 - 2025-07-16
 
diff --git a/embassy-usb-driver/Cargo.toml b/embassy-usb-driver/Cargo.toml
index 3f43f60a3e..2338fd4f5b 100644
--- a/embassy-usb-driver/Cargo.toml
+++ b/embassy-usb-driver/Cargo.toml
@@ -19,7 +19,7 @@ target = "thumbv7em-none-eabi"
 features = ["defmt"]
 
 [dependencies]
-embedded-io-async = "0.6.1"
+embedded-io-async = "0.7"
 defmt = { version = "1", optional = true }
 
 [features]
diff --git a/embassy-usb/CHANGELOG.md b/embassy-usb/CHANGELOG.md
index 3dd71ffbc5..eafa8f2367 100644
--- a/embassy-usb/CHANGELOG.md
+++ b/embassy-usb/CHANGELOG.md
@@ -10,6 +10,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 - Add support for USB HID Boot Protocol Mode 
 - Bump usbd-hid from 0.8.1 to 0.9.0
+- Upgrade heapless to 0.9
+- Upgrade embedded-io-async to 0.7.x.
 
 ## 0.5.1 - 2025-08-26
 
diff --git a/embassy-usb/Cargo.toml b/embassy-usb/Cargo.toml
index 3d1e005e44..4de3d2916c 100644
--- a/embassy-usb/Cargo.toml
+++ b/embassy-usb/Cargo.toml
@@ -65,8 +65,8 @@ embassy-net-driver-channel = { version = "0.3.2", path = "../embassy-net-driver-
 
 defmt = { version = "1", optional = true }
 log = { version = "0.4.14", optional = true }
-heapless = "0.8"
-embedded-io-async = "0.6.1"
+heapless = "0.9"
+embedded-io-async = "0.7"
 
 # for HID
 usbd-hid = { version = "0.9.0", optional = true }
diff --git a/examples/mspm0g3507/Cargo.toml b/examples/mspm0g3507/Cargo.toml
index 8c230f038a..d6673b9b0e 100644
--- a/examples/mspm0g3507/Cargo.toml
+++ b/examples/mspm0g3507/Cargo.toml
@@ -18,7 +18,7 @@ defmt-rtt = "1.0.0"
 panic-probe = { version = "1.0.0", features = ["print-defmt"] }
 panic-semihosting = "0.6.0"
 
-embedded-io-async = "0.6.1"
+embedded-io-async = "0.7"
 
 [profile.release]
 debug = 2
diff --git a/examples/nrf52840/Cargo.toml b/examples/nrf52840/Cargo.toml
index 1fe3d24198..937b83a6c0 100644
--- a/examples/nrf52840/Cargo.toml
+++ b/examples/nrf52840/Cargo.toml
@@ -13,8 +13,8 @@ embassy-time = { version = "0.5.0", path = "../../embassy-time", features = ["de
 embassy-nrf = { version = "0.8.0", path = "../../embassy-nrf", features = ["defmt", "nrf52840", "time-driver-rtc1", "gpiote", "unstable-pac", "time", "net-driver"] }
 embassy-net = { version = "0.7.1", path = "../../embassy-net", features = ["defmt", "tcp", "dhcpv4", "medium-ethernet","udp", "medium-ieee802154", "proto-ipv6"] }
 embassy-usb = { version = "0.5.1", path = "../../embassy-usb", features = ["defmt"] }
-embedded-io = { version = "0.6.0", features = ["defmt-03"]  }
-embedded-io-async = { version = "0.6.1", features = ["defmt-03"] }
+embedded-io = { version = "0.7", features = ["defmt"]  }
+embedded-io-async = { version = "0.7", features = ["defmt"] }
 embassy-net-esp-hosted = { version = "0.2.1", path = "../../embassy-net-esp-hosted", features = ["defmt"] }
 embassy-net-enc28j60 = { version = "0.2.1", path = "../../embassy-net-enc28j60", features = ["defmt"] }
 
diff --git a/examples/nrf5340/Cargo.toml b/examples/nrf5340/Cargo.toml
index 97efe58e8f..b3fc33e29d 100644
--- a/examples/nrf5340/Cargo.toml
+++ b/examples/nrf5340/Cargo.toml
@@ -13,7 +13,7 @@ embassy-time = { version = "0.5.0", path = "../../embassy-time", features = ["de
 embassy-nrf = { version = "0.8.0", path = "../../embassy-nrf", features = ["defmt", "nrf5340-app-s", "time-driver-rtc1", "gpiote", "unstable-pac"] }
 embassy-net = { version = "0.7.1", path = "../../embassy-net", features = ["defmt", "tcp", "dhcpv4", "medium-ethernet"] }
 embassy-usb = { version = "0.5.1", path = "../../embassy-usb", features = ["defmt"] }
-embedded-io-async = { version = "0.6.1" }
+embedded-io-async = { version = "0.7" }
 
 defmt = "1.0.1"
 defmt-rtt = "1.0.0"
diff --git a/examples/nrf54l15/Cargo.toml b/examples/nrf54l15/Cargo.toml
index f34df0f266..4e29bb071c 100644
--- a/examples/nrf54l15/Cargo.toml
+++ b/examples/nrf54l15/Cargo.toml
@@ -10,9 +10,9 @@ embassy-futures = { version = "0.1.2", path = "../../embassy-futures" }
 embassy-executor = { version = "0.9.0", path = "../../embassy-executor", features = ["arch-cortex-m", "executor-thread", "executor-interrupt", "defmt"] }
 embassy-time = { version = "0.5.0", path = "../../embassy-time", features = ["defmt", "defmt-timestamp-uptime"] }
 embassy-sync = { version = "0.7.2", path = "../../embassy-sync", features = ["defmt"] }
-embassy-nrf = { version = "0.8.0", path = "../../embassy-nrf", features = ["defmt", "nrf54l15-app-s", "time-driver-grtc", "gpiote", "unstable-pac", "time"] }
-embedded-io = { version = "0.6.0", features = ["defmt-03"]  }
-embedded-io-async = { version = "0.6.1", features = ["defmt-03"] }
+embassy-nrf = { version = "0.8.0", path = "../../embassy-nrf", features = ["defmt", "nrf54l15-app-s", "time-driver-rtc1", "gpiote", "unstable-pac", "time"] }
+embedded-io = { version = "0.7", features = ["defmt"]  }
+embedded-io-async = { version = "0.7", features = ["defmt"] }
 
 rand = { version = "0.9.0", default-features = false }
 
diff --git a/examples/nrf9160/Cargo.toml b/examples/nrf9160/Cargo.toml
index ae3b2eeb17..ac78b2aef1 100644
--- a/examples/nrf9160/Cargo.toml
+++ b/examples/nrf9160/Cargo.toml
@@ -15,13 +15,13 @@ embassy-net = { version = "0.7.1", path = "../../embassy-net", features = ["defm
 defmt = "1.0.1"
 defmt-rtt = "1.0.0"
 
-heapless = "0.8"
+heapless = "0.9"
 cortex-m = { version = "0.7.6", features = ["inline-asm", "critical-section-single-core"] }
 cortex-m-rt = "0.7.0"
 panic-probe = { version = "1.0.0", features = ["print-defmt"] }
 static_cell = { version = "2" }
-embedded-io = "0.6.1"
-embedded-io-async = { version = "0.6.1", features = ["defmt-03"] }
+embedded-io = "0.7"
+embedded-io-async = { version = "0.7", features = ["defmt"] }
 
 [profile.release]
 debug = 2
diff --git a/examples/rp/Cargo.toml b/examples/rp/Cargo.toml
index 9d7d992599..4e78d5b834 100644
--- a/examples/rp/Cargo.toml
+++ b/examples/rp/Cargo.toml
@@ -44,13 +44,13 @@ mipidsi = "0.8.0"
 display-interface = "0.5.0"
 byte-slice-cast = { version = "1.2.0", default-features = false }
 smart-leds = "0.4.0"
-heapless = "0.8"
+heapless = "0.9"
 usbd-hid = "0.9.0"
 
 embedded-hal-1 = { package = "embedded-hal", version = "1.0" }
 embedded-hal-async = "1.0"
 embedded-hal-bus = { version = "0.1", features = ["async"] }
-embedded-io-async = { version = "0.6.1", features = ["defmt-03"] }
+embedded-io-async = { version = "0.7", features = ["defmt"] }
 embedded-storage = { version = "0.3" }
 static_cell = "2.1"
 portable-atomic = { version = "1.5", features = ["critical-section"] }
diff --git a/examples/rp235x/Cargo.toml b/examples/rp235x/Cargo.toml
index ad396275b6..dd06ea131b 100644
--- a/examples/rp235x/Cargo.toml
+++ b/examples/rp235x/Cargo.toml
@@ -45,13 +45,13 @@ mipidsi = "0.8.0"
 display-interface = "0.5.0"
 byte-slice-cast = { version = "1.2.0", default-features = false }
 smart-leds = "0.3.0"
-heapless = "0.8"
+heapless = "0.9"
 usbd-hid = "0.9.0"
 
 embedded-hal-1 = { package = "embedded-hal", version = "1.0" }
 embedded-hal-async = "1.0"
 embedded-hal-bus = { version = "0.1", features = ["async"] }
-embedded-io-async = { version = "0.6.1", features = ["defmt-03"] }
+embedded-io-async = { version = "0.7", features = ["defmt"] }
 embedded-storage = { version = "0.3" }
 static_cell = "2.1"
 portable-atomic = { version = "1.5", features = ["critical-section"] }
diff --git a/examples/std/Cargo.toml b/examples/std/Cargo.toml
index 6dc6a353d0..3714faa9ec 100644
--- a/examples/std/Cargo.toml
+++ b/examples/std/Cargo.toml
@@ -12,8 +12,8 @@ embassy-time = { version = "0.5.0", path = "../../embassy-time", features = ["lo
 embassy-net = { version = "0.7.1", path = "../../embassy-net", features=[ "log", "medium-ethernet", "medium-ip", "tcp", "udp", "dns", "dhcpv4", "proto-ipv6"] }
 embassy-net-tuntap = { version = "0.1.0", path = "../../embassy-net-tuntap" }
 embassy-net-ppp = { version = "0.2.1", path = "../../embassy-net-ppp", features = ["log"]}
-embedded-io-async = { version = "0.6.1" }
-embedded-io-adapters = { version = "0.6.1", features = ["futures-03"] }
+embedded-io-async = { version = "0.7" }
+embedded-io-adapters = { version = "0.7", features = ["futures-03"] }
 critical-section = { version = "1.1", features = ["std"] }
 
 async-io = "1.6.0"
@@ -23,7 +23,7 @@ log = "0.4.14"
 nix = "0.26.2"
 clap = { version = "3.0.0-beta.5", features = ["derive"] }
 rand_core = { version = "0.9.1", features = ["std", "os_rng"] }
-heapless = { version = "0.8", default-features = false }
+heapless = { version = "0.9", default-features = false }
 static_cell = "2"
 
 [profile.release]
diff --git a/examples/stm32c0/Cargo.toml b/examples/stm32c0/Cargo.toml
index 696a958549..eb4ec9318d 100644
--- a/examples/stm32c0/Cargo.toml
+++ b/examples/stm32c0/Cargo.toml
@@ -19,7 +19,7 @@ cortex-m = { version = "0.7.6", features = ["critical-section-single-core"] }
 cortex-m-rt = "0.7.0"
 embedded-hal = "0.2.6"
 panic-probe = { version = "1.0.0", features = ["print-defmt"] }
-heapless = { version = "0.8", default-features = false }
+heapless = { version = "0.9", default-features = false }
 chrono = { version = "^0.4", default-features = false}
 
 [profile.release]
diff --git a/examples/stm32f1/Cargo.toml b/examples/stm32f1/Cargo.toml
index 5714b149ac..1ec78706be 100644
--- a/examples/stm32f1/Cargo.toml
+++ b/examples/stm32f1/Cargo.toml
@@ -21,7 +21,7 @@ cortex-m = { version = "0.7.6", features = ["inline-asm", "critical-section-sing
 cortex-m-rt = "0.7.0"
 embedded-hal = "0.2.6"
 panic-probe = { version = "1.0.0", features = ["print-defmt"] }
-heapless = { version = "0.8", default-features = false }
+heapless = { version = "0.9", default-features = false }
 nb = "1.0.0"
 static_cell = "2.0.0"
 
diff --git a/examples/stm32f2/Cargo.toml b/examples/stm32f2/Cargo.toml
index f726018c3c..6cf052e04d 100644
--- a/examples/stm32f2/Cargo.toml
+++ b/examples/stm32f2/Cargo.toml
@@ -19,7 +19,7 @@ cortex-m = { version = "0.7.6", features = ["inline-asm", "critical-section-sing
 cortex-m-rt = "0.7.0"
 embedded-hal = "0.2.6"
 panic-probe = { version = "1.0.0", features = ["print-defmt"] }
-heapless = { version = "0.8", default-features = false }
+heapless = { version = "0.9", default-features = false }
 nb = "1.0.0"
 
 [profile.release]
diff --git a/examples/stm32f3/Cargo.toml b/examples/stm32f3/Cargo.toml
index 4349e80550..2a34c495b7 100644
--- a/examples/stm32f3/Cargo.toml
+++ b/examples/stm32f3/Cargo.toml
@@ -21,7 +21,7 @@ cortex-m = { version = "0.7.6", features = ["inline-asm", "critical-section-sing
 cortex-m-rt = "0.7.0"
 embedded-hal = "0.2.6"
 panic-probe = { version = "1.0.0", features = ["print-defmt"] }
-heapless = { version = "0.8", default-features = false }
+heapless = { version = "0.9", default-features = false }
 nb = "1.0.0"
 embedded-storage = "0.3.1"
 static_cell = "2"
diff --git a/examples/stm32f334/Cargo.toml b/examples/stm32f334/Cargo.toml
index cf22633dd1..bbb1157567 100644
--- a/examples/stm32f334/Cargo.toml
+++ b/examples/stm32f334/Cargo.toml
@@ -20,7 +20,7 @@ cortex-m = { version = "0.7.6", features = ["inline-asm", "critical-section-sing
 cortex-m-rt = "0.7.0"
 embedded-hal = "0.2.6"
 panic-probe = { version = "1.0.0", features = ["print-defmt"] }
-heapless = { version = "0.8", default-features = false }
+heapless = { version = "0.9", default-features = false }
 nb = "1.0.0"
 embedded-storage = "0.3.1"
 static_cell = "2"
diff --git a/examples/stm32f4/Cargo.toml b/examples/stm32f4/Cargo.toml
index b4555045a0..cc4064f00a 100644
--- a/examples/stm32f4/Cargo.toml
+++ b/examples/stm32f4/Cargo.toml
@@ -23,11 +23,11 @@ cortex-m = { version = "0.7.6", features = ["inline-asm", "critical-section-sing
 cortex-m-rt = "0.7.0"
 embedded-hal = "0.2.6"
 embedded-hal-bus = { version = "0.2", features = ["async"] }
-embedded-io = { version = "0.6.0" }
-embedded-io-async = { version = "0.6.1" }
+embedded-io = { version = "0.7"  }
+embedded-io-async = { version = "0.7" }
 panic-probe = { version = "1.0.0", features = ["print-defmt"] }
 futures-util = { version = "0.3.30", default-features = false }
-heapless = { version = "0.8", default-features = false }
+heapless = { version = "0.9", default-features = false }
 critical-section = "1.1"
 nb = "1.0.0"
 embedded-storage = "0.3.1"
diff --git a/examples/stm32f7/Cargo.toml b/examples/stm32f7/Cargo.toml
index 5652773949..3a50eb4091 100644
--- a/examples/stm32f7/Cargo.toml
+++ b/examples/stm32f7/Cargo.toml
@@ -12,7 +12,7 @@ embassy-sync = { version = "0.7.2", path = "../../embassy-sync", features = ["de
 embassy-executor = { version = "0.9.0", path = "../../embassy-executor", features = ["arch-cortex-m", "executor-thread", "defmt"] }
 embassy-time = { version = "0.5.0", path = "../../embassy-time", features = ["defmt", "defmt-timestamp-uptime", "tick-hz-32_768"] }
 embassy-net = { version = "0.7.1", path = "../../embassy-net", features = ["defmt", "tcp", "dhcpv4", "medium-ethernet"] }
-embedded-io-async = { version = "0.6.1" }
+embedded-io-async = { version = "0.7" }
 embassy-usb = { version = "0.5.0", path = "../../embassy-usb", features = ["defmt"] }
 embassy-futures = { version = "0.1.0", path = "../../embassy-futures" }
 
@@ -23,7 +23,7 @@ cortex-m = { version = "0.7.6", features = ["inline-asm", "critical-section-sing
 cortex-m-rt = "0.7.0"
 embedded-hal = "0.2.6"
 panic-probe = { version = "1.0.0", features = ["print-defmt"] }
-heapless = { version = "0.8", default-features = false }
+heapless = { version = "0.9", default-features = false }
 nb = "1.0.0"
 critical-section = "1.1"
 embedded-storage = "0.3.1"
diff --git a/examples/stm32g0/Cargo.toml b/examples/stm32g0/Cargo.toml
index 16f28500df..07c5b2e041 100644
--- a/examples/stm32g0/Cargo.toml
+++ b/examples/stm32g0/Cargo.toml
@@ -21,10 +21,10 @@ cortex-m = { version = "0.7.6", features = ["inline-asm", "critical-section-sing
 cortex-m-rt = "0.7.0"
 embedded-hal = "0.2.6"
 panic-probe = { version = "1.0.0", features = ["print-defmt"] }
-heapless = { version = "0.8", default-features = false }
+heapless = { version = "0.9", default-features = false }
 portable-atomic = { version = "1.5", features = ["unsafe-assume-single-core"] }
 
-embedded-io-async = { version = "0.6.1" }
+embedded-io-async = { version = "0.7" }
 
 [profile.release]
 debug = 2
diff --git a/examples/stm32g4/Cargo.toml b/examples/stm32g4/Cargo.toml
index d1c19582b0..0df60a944b 100644
--- a/examples/stm32g4/Cargo.toml
+++ b/examples/stm32g4/Cargo.toml
@@ -23,7 +23,7 @@ cortex-m-rt = "0.7.0"
 embedded-hal = "0.2.6"
 embedded-can = { version = "0.4" }
 panic-probe = { version = "1.0.0", features = ["print-defmt"] }
-heapless = { version = "0.8", default-features = false }
+heapless = { version = "0.9", default-features = false }
 static_cell = "2.0.0"
 critical-section = "1.1"
 
diff --git a/examples/stm32h5/Cargo.toml b/examples/stm32h5/Cargo.toml
index 512186c3d0..72014fd23b 100644
--- a/examples/stm32h5/Cargo.toml
+++ b/examples/stm32h5/Cargo.toml
@@ -23,10 +23,10 @@ cortex-m-rt = "0.7.0"
 embedded-hal = "0.2.6"
 embedded-hal-1 = { package = "embedded-hal", version = "1.0" }
 embedded-hal-async = { version = "1.0" }
-embedded-io-async = { version = "0.6.1" }
+embedded-io-async = { version = "0.7" }
 embedded-nal-async = "0.8.0"
 panic-probe = { version = "1.0.0", features = ["print-defmt"] }
-heapless = { version = "0.8", default-features = false }
+heapless = { version = "0.9", default-features = false }
 critical-section = "1.1"
 micromath = "2.0.0"
 stm32-fmc = "0.4.0"
diff --git a/examples/stm32h7/Cargo.toml b/examples/stm32h7/Cargo.toml
index 09b7340542..89c547f49c 100644
--- a/examples/stm32h7/Cargo.toml
+++ b/examples/stm32h7/Cargo.toml
@@ -25,9 +25,9 @@ embedded-hal = "0.2.6"
 embedded-hal-1 = { package = "embedded-hal", version = "1.0" }
 embedded-hal-async = { version = "1.0" }
 embedded-nal-async = "0.8.0"
-embedded-io-async = { version = "0.6.1" }
+embedded-io-async = { version = "0.7" }
 panic-probe = { version = "1.0.0", features = ["print-defmt"] }
-heapless = { version = "0.8", default-features = false }
+heapless = { version = "0.9", default-features = false }
 critical-section = "1.1"
 micromath = "2.0.0"
 stm32-fmc = "0.4.0"
diff --git a/examples/stm32h723/Cargo.toml b/examples/stm32h723/Cargo.toml
index 93a5109e2c..6480905125 100644
--- a/examples/stm32h723/Cargo.toml
+++ b/examples/stm32h723/Cargo.toml
@@ -22,9 +22,9 @@ embedded-hal = "0.2.6"
 embedded-hal-1 = { package = "embedded-hal", version = "1.0" }
 embedded-hal-async = { version = "1.0" }
 embedded-nal-async = "0.8.0"
-embedded-io-async = { version = "0.6.1" }
+embedded-io-async = { version = "0.7" }
 panic-probe = { version = "1.0.0", features = ["print-defmt"] }
-heapless = { version = "0.8", default-features = false }
+heapless = { version = "0.9", default-features = false }
 critical-section = "1.1"
 static_cell = "2"
 chrono = { version = "^0.4", default-features = false }
diff --git a/examples/stm32h735/Cargo.toml b/examples/stm32h735/Cargo.toml
index 1ad2eeb2e0..6281b82097 100644
--- a/examples/stm32h735/Cargo.toml
+++ b/examples/stm32h735/Cargo.toml
@@ -19,7 +19,7 @@ defmt-rtt = "1.0.0"
 cortex-m = { version = "0.7.6", features = ["inline-asm", "critical-section-single-core"] }
 cortex-m-rt = "0.7.0"
 panic-probe = { version = "1.0.0", features = ["print-defmt"] }
-heapless = { version = "0.8", default-features = false }
+heapless = { version = "0.9", default-features = false }
 embedded-graphics = { version = "0.8.1" }
 tinybmp = { version = "0.5" }
 
diff --git a/examples/stm32h742/Cargo.toml b/examples/stm32h742/Cargo.toml
index 9b5e5d93dd..f4207e7c5d 100644
--- a/examples/stm32h742/Cargo.toml
+++ b/examples/stm32h742/Cargo.toml
@@ -33,7 +33,7 @@ embassy-net = { version = "0.7.1", path = "../../embassy-net", features = [
     "dhcpv4",
     "medium-ethernet",
 ] }
-embedded-io-async = { version = "0.6.1" }
+embedded-io-async = { version = "0.7" }
 embassy-usb = { version = "0.5.1", path = "../../embassy-usb", features = [
     "defmt",
 ] }
@@ -49,7 +49,7 @@ cortex-m = { version = "0.7.6", features = [
 cortex-m-rt = "0.7.0"
 embedded-hal = "0.2.6"
 panic-probe = { version = "1.0.0", features = ["print-defmt"] }
-heapless = { version = "0.8", default-features = false }
+heapless = { version = "0.9", default-features = false }
 nb = "1.0.0"
 critical-section = "1.1"
 embedded-storage = "0.3.1"
diff --git a/examples/stm32h755cm4/Cargo.toml b/examples/stm32h755cm4/Cargo.toml
index d69f0228e6..a9d68eb00c 100644
--- a/examples/stm32h755cm4/Cargo.toml
+++ b/examples/stm32h755cm4/Cargo.toml
@@ -25,9 +25,9 @@ embedded-hal = "0.2.6"
 embedded-hal-1 = { package = "embedded-hal", version = "1.0" }
 embedded-hal-async = { version = "1.0" }
 embedded-nal-async = "0.8.0"
-embedded-io-async = { version = "0.6.1" }
+embedded-io-async = { version = "0.7" }
 panic-probe = { version = "1.0.0", features = ["print-defmt"] }
-heapless = { version = "0.8", default-features = false }
+heapless = { version = "0.9", default-features = false }
 critical-section = "1.1"
 micromath = "2.0.0"
 stm32-fmc = "0.4.0"
diff --git a/examples/stm32h755cm7/Cargo.toml b/examples/stm32h755cm7/Cargo.toml
index f4e1e53b79..a6dd94b581 100644
--- a/examples/stm32h755cm7/Cargo.toml
+++ b/examples/stm32h755cm7/Cargo.toml
@@ -25,9 +25,9 @@ embedded-hal = "0.2.6"
 embedded-hal-1 = { package = "embedded-hal", version = "1.0" }
 embedded-hal-async = { version = "1.0" }
 embedded-nal-async = "0.8.0"
-embedded-io-async = { version = "0.6.1" }
+embedded-io-async = { version = "0.7" }
 panic-probe = { version = "1.0.0", features = ["print-defmt"] }
-heapless = { version = "0.8", default-features = false }
+heapless = { version = "0.9", default-features = false }
 critical-section = "1.1"
 micromath = "2.0.0"
 stm32-fmc = "0.4.0"
diff --git a/examples/stm32h7b0/Cargo.toml b/examples/stm32h7b0/Cargo.toml
index 0509d394df..ccc1ca9a85 100644
--- a/examples/stm32h7b0/Cargo.toml
+++ b/examples/stm32h7b0/Cargo.toml
@@ -24,9 +24,9 @@ embedded-hal = "0.2.6"
 embedded-hal-1 = { package = "embedded-hal", version = "1.0" }
 embedded-hal-async = { version = "1.0" }
 embedded-nal-async = "0.8.0"
-embedded-io-async = { version = "0.6.1" }
+embedded-io-async = { version = "0.7" }
 panic-probe = { version = "1.0.0", features = ["print-defmt"] }
-heapless = { version = "0.8", default-features = false }
+heapless = { version = "0.9", default-features = false }
 critical-section = "1.1"
 micromath = "2.0.0"
 stm32-fmc = "0.4.0"
diff --git a/examples/stm32h7rs/Cargo.toml b/examples/stm32h7rs/Cargo.toml
index ab525ad917..90b119f762 100644
--- a/examples/stm32h7rs/Cargo.toml
+++ b/examples/stm32h7rs/Cargo.toml
@@ -24,9 +24,9 @@ embedded-hal = "0.2.6"
 embedded-hal-1 = { package = "embedded-hal", version = "1.0" }
 embedded-hal-async = { version = "1.0" }
 embedded-nal-async = "0.8.0"
-embedded-io-async = { version = "0.6.1" }
+embedded-io-async = { version = "0.7" }
 panic-probe = { version = "1.0.0", features = ["print-defmt"] }
-heapless = { version = "0.8", default-features = false }
+heapless = { version = "0.9", default-features = false }
 critical-section = "1.1"
 micromath = "2.0.0"
 stm32-fmc = "0.4.0"
diff --git a/examples/stm32l0/Cargo.toml b/examples/stm32l0/Cargo.toml
index a9c71d655a..a9c039a428 100644
--- a/examples/stm32l0/Cargo.toml
+++ b/examples/stm32l0/Cargo.toml
@@ -18,13 +18,13 @@ defmt = "1.0.1"
 defmt-rtt = "1.0.0"
 
 embedded-storage = "0.3.1"
-embedded-io = { version = "0.6.0" }
-embedded-io-async = { version = "0.6.1" }
+embedded-io = { version = "0.7"  }
+embedded-io-async = { version = "0.7" }
 
 cortex-m = { version = "0.7.6", features = ["inline-asm", "critical-section-single-core"] }
 cortex-m-rt = "0.7.0"
 panic-probe = { version = "1.0.0", features = ["print-defmt"] }
-heapless = { version = "0.8", default-features = false }
+heapless = { version = "0.9", default-features = false }
 embedded-hal = "0.2.6"
 static_cell = { version = "2" }
 portable-atomic = { version = "1.5", features = ["unsafe-assume-single-core"] }
diff --git a/examples/stm32l1/Cargo.toml b/examples/stm32l1/Cargo.toml
index 7f6b31ed55..3bee8cc47b 100644
--- a/examples/stm32l1/Cargo.toml
+++ b/examples/stm32l1/Cargo.toml
@@ -20,7 +20,7 @@ cortex-m = { version = "0.7.6", features = ["inline-asm", "critical-section-sing
 cortex-m-rt = "0.7.0"
 embedded-hal = "0.2.6"
 panic-probe = { version = "1.0.0", features = ["print-defmt"] }
-heapless = { version = "0.8", default-features = false }
+heapless = { version = "0.9", default-features = false }
 embedded-storage = "0.3.1"
 
 [profile.release]
diff --git a/examples/stm32l4/Cargo.toml b/examples/stm32l4/Cargo.toml
index 9364721992..dea83ae9d4 100644
--- a/examples/stm32l4/Cargo.toml
+++ b/examples/stm32l4/Cargo.toml
@@ -16,8 +16,8 @@ embassy-usb = { version = "0.5.0", path = "../../embassy-usb", features = ["defm
 embassy-net-adin1110 = { version = "0.3.1", path = "../../embassy-net-adin1110" }
 embassy-net = { version = "0.7.1", path = "../../embassy-net", features = ["defmt",  "udp", "tcp", "dhcpv4", "medium-ethernet"] }
 embassy-futures = { version = "0.1.2", path = "../../embassy-futures" }
-embedded-io-async = { version = "0.6.1", features = ["defmt-03"] }
-embedded-io = { version = "0.6.0", features = ["defmt-03"] }
+embedded-io-async = { version = "0.7", features = ["defmt"] }
+embedded-io = { version = "0.7", features = ["defmt"] }
 
 defmt = "1.0.1"
 defmt-rtt = "1.0.0"
@@ -29,7 +29,7 @@ embedded-hal-1 = { package = "embedded-hal", version = "1.0" }
 embedded-hal-async = { version = "1.0" }
 embedded-hal-bus = { version = "0.1", features = ["async"] }
 panic-probe = { version = "1.0.0", features = ["print-defmt"] }
-heapless = { version = "0.8", default-features = false }
+heapless = { version = "0.9", default-features = false }
 chrono = { version = "^0.4", default-features = false }
 static_cell = "2"
 
diff --git a/examples/stm32l5/Cargo.toml b/examples/stm32l5/Cargo.toml
index 586b00836e..fe416fc5ef 100644
--- a/examples/stm32l5/Cargo.toml
+++ b/examples/stm32l5/Cargo.toml
@@ -23,8 +23,8 @@ panic-probe = { version = "1.0.0", features = ["print-defmt"] }
 cortex-m = { version = "0.7.6", features = ["inline-asm", "critical-section-single-core"] }
 cortex-m-rt = "0.7.0"
 embedded-hal = "0.2.6"
-heapless = { version = "0.8", default-features = false }
-embedded-io-async = { version = "0.6.1" }
+heapless = { version = "0.9", default-features = false }
+embedded-io-async = { version = "0.7" }
 static_cell = "2"
 
 [profile.release]
diff --git a/examples/stm32n6/Cargo.toml b/examples/stm32n6/Cargo.toml
index 5ed28eed17..d9901a4dd6 100644
--- a/examples/stm32n6/Cargo.toml
+++ b/examples/stm32n6/Cargo.toml
@@ -23,10 +23,10 @@ cortex-m-rt = "0.7.0"
 embedded-hal = "0.2.6"
 embedded-hal-1 = { package = "embedded-hal", version = "1.0" }
 embedded-hal-async = { version = "1.0" }
-embedded-io-async = { version = "0.6.1" }
+embedded-io-async = { version = "0.7" }
 embedded-nal-async = "0.8.0"
 panic-probe = { version = "1.0.0", features = ["print-defmt"] }
-heapless = { version = "0.8", default-features = false }
+heapless = { version = "0.9", default-features = false }
 critical-section = "1.1"
 micromath = "2.0.0"
 stm32-fmc = "0.3.0"
diff --git a/examples/stm32u5/Cargo.toml b/examples/stm32u5/Cargo.toml
index 7a1e624060..d941b6fb97 100644
--- a/examples/stm32u5/Cargo.toml
+++ b/examples/stm32u5/Cargo.toml
@@ -21,7 +21,7 @@ cortex-m = { version = "0.7.6", features = ["inline-asm", "critical-section-sing
 cortex-m-rt = "0.7.0"
 embedded-hal = "0.2.6"
 panic-probe = { version = "1.0.0", features = ["print-defmt"] }
-heapless = { version = "0.8", default-features = false }
+heapless = { version = "0.9", default-features = false }
 embedded-graphics = { version = "0.8.1" }
 tinybmp = { version = "0.6.0" }
 
diff --git a/examples/stm32wb/Cargo.toml b/examples/stm32wb/Cargo.toml
index 83119e3a00..febaeef2b8 100644
--- a/examples/stm32wb/Cargo.toml
+++ b/examples/stm32wb/Cargo.toml
@@ -21,7 +21,7 @@ cortex-m = { version = "0.7.6", features = ["inline-asm", "critical-section-sing
 cortex-m-rt = "0.7.0"
 embedded-hal = "1.0.0"
 panic-probe = { version = "1.0.0", features = ["print-defmt"] }
-heapless = { version = "0.8", default-features = false }
+heapless = { version = "0.9", default-features = false }
 static_cell = "2"
 
 [features]
diff --git a/examples/stm32wba/Cargo.toml b/examples/stm32wba/Cargo.toml
index 3496b41b08..e6a5d9b54b 100644
--- a/examples/stm32wba/Cargo.toml
+++ b/examples/stm32wba/Cargo.toml
@@ -19,7 +19,7 @@ cortex-m = { version = "0.7.6", features = ["inline-asm", "critical-section-sing
 cortex-m-rt = "0.7.0"
 embedded-hal = "1.0.0"
 panic-probe = { version = "1.0.0", features = ["print-defmt"] }
-heapless = { version = "0.8", default-features = false }
+heapless = { version = "0.9", default-features = false }
 static_cell = "2"
 
 [profile.release]
diff --git a/examples/stm32wba6/Cargo.toml b/examples/stm32wba6/Cargo.toml
index 04bb27cb0c..91781f72ad 100644
--- a/examples/stm32wba6/Cargo.toml
+++ b/examples/stm32wba6/Cargo.toml
@@ -20,7 +20,7 @@ cortex-m = { version = "0.7.6", features = ["inline-asm", "critical-section-sing
 cortex-m-rt = "0.7.0"
 embedded-hal = "1.0.0"
 panic-probe = { version = "1.0.0", features = ["print-defmt"] }
-heapless = { version = "0.8", default-features = false }
+heapless = { version = "0.9", default-features = false }
 static_cell = "2"
 
 [profile.release]
diff --git a/examples/stm32wl/Cargo.toml b/examples/stm32wl/Cargo.toml
index 1754aa0b8e..4884f3be98 100644
--- a/examples/stm32wl/Cargo.toml
+++ b/examples/stm32wl/Cargo.toml
@@ -21,7 +21,7 @@ cortex-m-rt = "0.7.0"
 embedded-hal = "0.2.6"
 embedded-storage = "0.3.1"
 panic-probe = { version = "1.0.0", features = ["print-defmt"] }
-heapless = { version = "0.8", default-features = false }
+heapless = { version = "0.9", default-features = false }
 chrono = { version = "^0.4", default-features = false }
 
 [profile.release]
diff --git a/tests/mspm0/Cargo.toml b/tests/mspm0/Cargo.toml
index df52b538d4..88c37d950f 100644
--- a/tests/mspm0/Cargo.toml
+++ b/tests/mspm0/Cargo.toml
@@ -26,8 +26,8 @@ cortex-m = { version = "0.7.6", features = [ "inline-asm", "critical-section-sin
 cortex-m-rt = "0.7.0"
 embedded-hal = { package = "embedded-hal", version = "1.0" }
 embedded-hal-async = { version = "1.0" }
-embedded-io = { version = "0.6.1", features = ["defmt-03"] }
-embedded-io-async = { version = "0.6.1", features = ["defmt-03"] }
+embedded-io = { version = "0.7", features = ["defmt"] }
+embedded-io-async = { version = "0.7", features = ["defmt"] }
 panic-probe = { version = "1.0.0", features = ["print-defmt"] }
 static_cell = "2"
 portable-atomic = { version = "1.5", features = ["critical-section"] }
diff --git a/tests/nrf/Cargo.toml b/tests/nrf/Cargo.toml
index 3a9b86cefe..ce6821bda4 100644
--- a/tests/nrf/Cargo.toml
+++ b/tests/nrf/Cargo.toml
@@ -13,7 +13,7 @@ embassy-sync = { version = "0.7.2", path = "../../embassy-sync", features = ["de
 embassy-executor = { version = "0.9.0", path = "../../embassy-executor", features = ["arch-cortex-m", "executor-thread", "defmt"] }
 embassy-time = { version = "0.5.0", path = "../../embassy-time", features = ["defmt",  "defmt-timestamp-uptime"] }
 embassy-nrf = { version = "0.8.0", path = "../../embassy-nrf", features = ["defmt",  "time-driver-rtc1", "gpiote", "unstable-pac"] }
-embedded-io-async = { version = "0.6.1", features = ["defmt-03"] }
+embedded-io-async = { version = "0.7", features = ["defmt"] }
 embassy-net = { version = "0.7.1", path = "../../embassy-net", features = ["defmt", "tcp", "dhcpv4", "medium-ethernet", ] }
 embassy-net-esp-hosted = { version = "0.2.1", path = "../../embassy-net-esp-hosted", features = ["defmt"] }
 embassy-net-enc28j60 = { version = "0.2.1", path = "../../embassy-net-enc28j60", features = ["defmt"] }
diff --git a/tests/rp/Cargo.toml b/tests/rp/Cargo.toml
index 640e58f11d..32cc1d6058 100644
--- a/tests/rp/Cargo.toml
+++ b/tests/rp/Cargo.toml
@@ -35,7 +35,7 @@ embedded-hal-1 = { package = "embedded-hal", version = "1.0" }
 embedded-hal-async = { version = "1.0" }
 embedded-hal-bus = { version = "0.1", features = ["async"] }
 panic-probe = { version = "1.0.0", features = ["print-defmt"] }
-embedded-io-async = { version = "0.6.1" }
+embedded-io-async = { version = "0.7" }
 embedded-storage = { version = "0.3" }
 static_cell = "2"
 portable-atomic = { version = "1.5", features = ["critical-section"] }