v0.4.0

v0.4.0 is stamped to switch from u64 histogram to f64 histogram so the duration data is actually useful.

Thanks & credit to @sartak for the contribution.

v0.3.0

v0.3.0 is stamped to be compatible with the opentelemetry dependency version 0.22; opentelemetry-api dependency is removed again as the required members are once again exposed through the opentelemetry library.

v0.2.1

v0.2.1 is stamped to remove the now-unused opentelemetry dependency; removal was missed in v0.2.0.

v0.2.0

v0.2.0 is stamped to be compatible with the following:

• axum 0.7
• hyper 1.0
• opentelemetry 0.21
• opentelemetry_api 0.20

v0.1.0

after floating around on some alpha versions, v0.1.0 is stamped to be compatible with the following:

• axum 0.6
• hyper 0.14
• the recent stabilization of OTEL HTTP metric naming semantic conventions