subscriber: prepare to release 0.2.25 (tokio-rs#1622)

# 0.2.25 (October 5, 2021)

This release fixes an issue where a `Layer` implementation's custom
`downcast_raw` implementation was lost when wrapping that layer with a
per-layer filter.

### Fixed

- **registry**: Forward `Filtered::downcast_raw` to wrapped `Layer`
  ([tokio-rs#1619])

### Added

- Documentation improvements ([tokio-rs#1596], [tokio-rs#1601])

Thanks to @bryanburgers for contributing to this release!

[tokio-rs#1619]: tokio-rs#1619
[tokio-rs#1601]: tokio-rs#1601
[tokio-rs#1596]: tokio-rs#1596

tracing-subscriber/CHANGELOG.md

@@ -1,3 +1,23 @@
+# 0.2.25 (October 5, 2021)
+
+This release fixes an issue where a `Layer` implementation's custom
+`downcast_raw` implementation was lost when wrapping that layer with a per-layer
+filter.
+
+### Fixed
+
+- **registry**: Forward `Filtered::downcast_raw` to wrapped `Layer` ([#1619])
+
+### Added
+
+- Documentation improvements ([#1596], [#1601])
+
+Thanks to @bryanburgers for contributing to this release!
+
+[#1619]: https://github.com/tokio-rs/tracing/pull/1619
+[#1601]: https://github.com/tokio-rs/tracing/pull/1601
+[#1596]: https://github.com/tokio-rs/tracing/pull/1596
+
 # 0.2.24 (September 19, 2021)
 
 This release contains a number of bug fixes, including a fix for