diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6b9c934159..cb3932d297 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,8 +1,12 @@
 Pkg v1.13 Release Notes
 =======================
 
-- Project.toml environments now support a `readonly` field to mark environments as read-only, preventing modifications.
-  ([#4284])
+- Pkg now avoids unnecessary re-resolving when adding a package that already has a compatible version in the environment ([#4445])
+- `Pkg.add` now only precompiles the newly added package and its dependencies, rather than all packages in the environment. ([#3848])
+- Package garbage collection has been simplified by immediately deleting orphaned packages and artifacts instead of using
+  an "orphanage" mechanism. ([#4395])
+- Project.toml environments now support a `readonly` field to mark environments as read-only, preventing modifications and a new `Pkg.readonly(state::Bool)` API has been
+  added to enable/disable this check programmatically. ([#4284], [#4397])
 - `Pkg.build` now supports an `allow_reresolve` keyword argument to control whether the build process can re-resolve
   package versions, similar to the existing option for `Pkg.test`. ([#3329])
 - Packages are now automatically added to `[sources]` when they are added by url or devved. ([#4225])
@@ -39,6 +43,11 @@ Pkg v1.13 Release Notes
 - Fixed various edge cases in package resolution and manifest handling. ([#4307], [#4308], [#4312])
 - Improved handling of path separators across different operating systems. ([#4305])
 - Added better error messages when accessing private PackageSpec.repo field. ([#4170])
+- Pkg no longer attempts to update registries in unwritable folders ([#4429])
+- Fixed URL scheme parsing in REPL mode to handle more complex URLs correctly. ([#4450])
+- Parsing of multiple packages with modifiers (like version specifiers) now works correctly. ([#4325])
+- Stdlib compat entries are now ignored for fixed stdlibs, with warnings displayed for incorrect entries. ([#4437])
+- Added `.cachedir` files to various cache directories to prevent them from being included in system backups. ([#4438])
 
 Pkg v1.12 Release Notes
 =======================
@@ -143,6 +152,15 @@ Pkg v1.7 Release Notes
 - The `mode` keyword for `PackageSpec` has been removed ([#2454]).
 
 <!--- Generated by NEWS-update.jl --->
+[#3848]: https://github.com/JuliaLang/Pkg.jl/issues/3848
+[#4325]: https://github.com/JuliaLang/Pkg.jl/issues/4325
+[#4395]: https://github.com/JuliaLang/Pkg.jl/issues/4395
+[#4397]: https://github.com/JuliaLang/Pkg.jl/issues/4397
+[#4429]: https://github.com/JuliaLang/Pkg.jl/issues/4429
+[#4437]: https://github.com/JuliaLang/Pkg.jl/issues/4437
+[#4438]: https://github.com/JuliaLang/Pkg.jl/issues/4438
+[#4445]: https://github.com/JuliaLang/Pkg.jl/issues/4445
+[#4450]: https://github.com/JuliaLang/Pkg.jl/issues/4450
 [#4225]: https://github.com/JuliaLang/Pkg.jl/issues/4225
 [#4284]: https://github.com/JuliaLang/Pkg.jl/issues/4284
 [#3526]: https://github.com/JuliaLang/Pkg.jl/issues/3526