diff --git a/CHANGELOG.md b/CHANGELOG.md
index f5b9688414..5cab492167 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,10 +1,20 @@
+Pkg v1.13 Release Notes
+=======================
+
+- Project.toml environments now support a `readonly` field to mark environments as read-only, preventing modifications. ([#4284])
+- Pkg now automatically adds entries to `[sources]` when packages are added by URL or devved, improving workflow consistency. ([#4225])
+
 Pkg v1.12 Release Notes
 =======================
 
 - Pkg now has support for "workspaces" which is a way to resolve multiple project files into a single manifest.
   The functions `Pkg.status`, `Pkg.why`, `Pkg.instantiate`, `Pkg.precompile` (and their REPL variants) have been updated
-  to take a `workspace` option. Read more about this feature in the manual about the TOML-files.
+  to take a `workspace` option. Read more about this feature in the manual about the TOML-files. ([#3841])
+- Pkg now supports "apps" which are Julia packages that can be run directly from the terminal after installation.
+  Apps can be defined in a package's Project.toml and installed via Pkg. ([#3772])
 - `status` now shows when different versions/sources of dependencies are loaded than that which is expected by the manifest ([#4109])
+- When adding or developing a package that exists in the `[weakdeps]` section, it is now automatically removed from 
+  weak dependencies and added as a regular dependency. ([#3865])
 - Packages are also automatically added to `[sources]` when they are added by url or devved.
 
 Pkg v1.11 Release Notes
@@ -85,6 +95,16 @@ Pkg v1.7 Release Notes
 - The `mode` keyword for `PackageSpec` has been removed ([#2454]).
 
 <!--- Generated by NEWS-update.jl --->
+[#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
+[#3708]: https://github.com/JuliaLang/Pkg.jl/issues/3708
+[#3732]: https://github.com/JuliaLang/Pkg.jl/issues/3732
+[#3772]: https://github.com/JuliaLang/Pkg.jl/issues/3772
+[#3783]: https://github.com/JuliaLang/Pkg.jl/issues/3783
+[#3841]: https://github.com/JuliaLang/Pkg.jl/issues/3841
+[#3865]: https://github.com/JuliaLang/Pkg.jl/issues/3865
+[#4109]: https://github.com/JuliaLang/Pkg.jl/issues/4109
 [#2284]: https://github.com/JuliaLang/Pkg.jl/issues/2284
 [#2431]: https://github.com/JuliaLang/Pkg.jl/issues/2431
 [#2432]: https://github.com/JuliaLang/Pkg.jl/issues/2432