tracing: prepare to release 0.1.26 (tokio-rs#1383)

# 0.1.26 (April 30, 2021)

### Fixed

- **attributes**: Compatibility between `#[instrument]` and `async-trait`
  v0.1.43 and newer ([tokio-rs#1228])
- Several documentation fixes ([tokio-rs#1305], [tokio-rs#1344])
### Added

- `Subscriber` impl for `Box<dyn Subscriber + Send + Sync + 'static>`
  ([tokio-rs#1358])
- `Subscriber` impl for `Arc<dyn Subscriber + Send + Sync + 'static>`
  ([tokio-rs#1374])
- Symmetric `From` impls for existing `Into` impls on `span::Current`,
  `Span`, and `Option<Id>` ([tokio-rs#1335], [tokio-rs#1338])
- `From<EnteredSpan>` implementation for `Option<Id>`, allowing
  `EnteredSpan` to be used in a `span!` macro's `parent:` field ([tokio-rs#1325])
- `Attributes::fields` accessor that returns the set of fields defined
  on a span's `Attributes` ([tokio-rs#1331])

Thanks to @Folyd, @nightmared, and new contributors @rmsc and @Fishrock123 for
contributing to this release!

[tokio-rs#1227]: tokio-rs#1228
[tokio-rs#1305]: tokio-rs#1305
[tokio-rs#1325]: tokio-rs#1325
[tokio-rs#1338]: tokio-rs#1338
[tokio-rs#1344]: tokio-rs#1344
[tokio-rs#1358]: tokio-rs#1358
[tokio-rs#1374]: tokio-rs#1374
[tokio-rs#1335]: tokio-rs#1335
[tokio-rs#1331]: tokio-rs#1331

tracing/CHANGELOG.md

@@ -1,3 +1,35 @@
+# 0.1.26 (April 30, 2021)
+
+### Fixed
+
+- **attributes**: Compatibility between `#[instrument]` and `async-trait`
+  v0.1.43 and newer ([#1228])
+- Several documentation fixes ([#1305], [#1344])
+### Added
+
+- `Subscriber` impl for `Box<dyn Subscriber + Send + Sync + 'static>` ([#1358])
+- `Subscriber` impl for `Arc<dyn Subscriber + Send + Sync + 'static>` ([#1374])
+- Symmetric `From` impls for existing `Into` impls on `span::Current`, `Span`,
+  and `Option<Id>` ([#1335], [#1338])
+- `From<EnteredSpan>` implementation for `Option<Id>`, allowing `EnteredSpan` to
+  be used in a `span!` macro's `parent:` field ([#1325])
+- `Attributes::fields` accessor that returns the set of fields defined on a
+  span's `Attributes` ([#1331])
+
+
+Thanks to @Folyd, @nightmared, and new contributors @rmsc and @Fishrock123 for
+contributing to this release!
+
+[#1227]: https://github.com/tokio-rs/tracing/pull/1228
+[#1305]: https://github.com/tokio-rs/tracing/pull/1305
+[#1325]: https://github.com/tokio-rs/tracing/pull/1325
+[#1338]: https://github.com/tokio-rs/tracing/pull/1338
+[#1344]: https://github.com/tokio-rs/tracing/pull/1344
+[#1358]: https://github.com/tokio-rs/tracing/pull/1358
+[#1374]: https://github.com/tokio-rs/tracing/pull/1374
+[#1335]: https://github.com/tokio-rs/tracing/pull/1335
+[#1331]: https://github.com/tokio-rs/tracing/pull/1331
+
 # 0.1.25 (February 23, 2021)
 
 ### Added

tracing/README.md

@@ -250,7 +250,7 @@ my_future
 is as long as the future's.
 
 The second, and preferred, option is through the
-[`#[instrument]`](https://docs.rs/tracing/0.1.25/tracing/attr.instrument.html)
+[`#[instrument]`](https://docs.rs/tracing/0.1.26/tracing/attr.instrument.html)
 attribute:
 
 ```rust
@@ -297,7 +297,7 @@ span.in_scope(|| {
 // Dropping the span will close it, indicating that it has ended.
 ```
 
-The [`#[instrument]`](https://docs.rs/tracing/0.1.25/tracing/attr.instrument.html) attribute macro
+The [`#[instrument]`](https://docs.rs/tracing/0.1.26/tracing/attr.instrument.html) attribute macro
 can reduce some of this boilerplate:
 
 ```rust