add release note

doc/manual/rl-next/profile-regex-all.md

@@ -0,0 +1,35 @@
+---
+synopsis: Introduction of `--regex` and `--all` in `nix profile remove` and `nix profile upgrade`
+prs: 10166
+---
+
+Previously the command-line arguments for `nix profile remove` and `nix profile upgrade` matched the package entries using regular expression.
+For instance:
+
+```
+nix profile remove '.*vim.*'
+```
+
+This would remove all packages that contain `vim` in their name.
+
+In most cases, only singular package names were used to remove and upgrade packages. Mixing this with regular expressions sometimes lead to unintended behavior. For instance, `python3.1` could match `python311`.
+
+To avoid unintended behavior, the arguments are now only matching exact names.
+
+Matching using regular expressions is still possible by using the new `--regex` flag:
+
+```
+nix profile remove --regex '.*vim.*'
+```
+
+One of the most useful cases for using regular expressions was to upgrade all packages. This was previously accomplished by:
+
+```
+nix profile upgrade '.*'
+```
+
+With the introduction of the `--all` flag, this now becomes more straightforward:
+
+```
+nix profile upgrade --all
+```