Bump demft-macros to 0.4.0 and pin it in new defmt-0.3.10.

Old defmt crates only required 'defmt-macros 0.3.2 or better' and might
be matched up with a version of defmt-macros that uses newer APIs than
the selected version of defmt provides. Really, each version of defmt
only supports precisely one version of defmt-macros, and now Cargo.toml
enforces that.

CHANGELOG.md

@@ -26,7 +26,8 @@ We have several packages which live in this repository. Changes are tracked sepa
 
 > A highly efficient logging framework that targets resource-constrained devices, like microcontrollers
 
-[defmt-next]: https://github.com/knurling-rs/defmt/compare/defmt-v0.3.9...main
+[defmt-next]: https://github.com/knurling-rs/defmt/compare/defmt-v0.3.10...main
+[defmt-v0.3.10]: https://github.com/knurling-rs/defmt/releases/tag/defmt-v0.3.10
 [defmt-v0.3.9]: https://github.com/knurling-rs/defmt/releases/tag/defmt-v0.3.9
 [defmt-v0.3.8]: https://github.com/knurling-rs/defmt/releases/tag/defmt-v0.3.8
 [defmt-v0.3.7]: https://github.com/knurling-rs/defmt/releases/tag/defmt-v0.3.7
@@ -48,7 +49,10 @@ We have several packages which live in this repository. Changes are tracked sepa
 
 ### [defmt-next]
 
+### [defmt-v0.3.10] (2024-11-29)
+
 * [#902] Minor change to Format impl for `core::panic::PanicInfo`, eliding a lifetime specifier to satisfy Clippy 1.83.
+* [#xxx] Pin the defmt-macro crate to avoid incompatible versions being used together
 
 ### [defmt-v0.3.9] (2024-11-27)
 
@@ -78,7 +82,7 @@ We have several packages which live in this repository. Changes are tracked sepa
 * [#839] `CI`: Fix tests
 * [#838] `defmt`: Switch to Cargo instruction compatible with older versions of Cargo
 
-### [defmt-v0.3.7] (2024-05-13)
+### [defmt-v0.3.7] (2024-05-13 (yanked))
 
 * [#831] `CI`: Fix CI
 * [#830] `book`: Add section about feature-gated derive Format
@@ -374,7 +378,8 @@ Initial release
 
 > Macros for [defmt](#defmt)
 
-[defmt-macros-next]: https://github.com/knurling-rs/defmt/compare/defmt-macros-v0.3.10...main
+[defmt-macros-next]: https://github.com/knurling-rs/defmt/compare/defmt-macros-v0.4.0...main
+[defmt-macros-v0.4.0]: https://github.com/knurling-rs/defmt/releases/tag/defmt-macros-v0.4.0
 [defmt-macros-v0.3.10]: https://github.com/knurling-rs/defmt/releases/tag/defmt-macros-v0.3.10
 [defmt-macros-v0.3.9]: https://github.com/knurling-rs/defmt/releases/tag/defmt-macros-v0.3.9
 [defmt-macros-v0.3.8]: https://github.com/knurling-rs/defmt/releases/tag/defmt-macros-v0.3.8
@@ -395,6 +400,10 @@ Initial release
 
 ### [defmt-macros-next]
 
+### [defmt-macros-v0.4.0] (2024-11-29)
+
+* [#xxx] Just a major version bump to stop it being used by older defmt versions.
+
 ### [defmt-macros-v0.3.10] (2024-11-27)
 
 ### [defmt-macros-v0.3.9] (2024-05-14)

defmt/Cargo.toml

@@ -43,7 +43,9 @@ encoding-rzcobs = []
 unstable-test = [ "defmt-macros/unstable-test" ]
 
 [dependencies]
-defmt-macros = { path = "../macros", version = "0.3.10" }
+# There is exactly one version of defmt-macros supported in this version of
+# defmt. Although, multiple versions of defmt might use the *same* defmt-macros.
+defmt-macros = { path = "../macros", version = "=0.4.0" }
 bitflags = "1"
 
 [dev-dependencies]

macros/Cargo.toml

@@ -7,7 +7,7 @@ license = "MIT OR Apache-2.0"
 name = "defmt-macros"
 readme = "README.md"
 repository = "https://github.com/knurling-rs/defmt"
-version = "0.3.10"
+version = "0.4.0"
 
 [lib]
 proc-macro = true