The Cosmos SDK v0.45.x line has reached end-of-life since v0.45.15. This is an exceptional security release according to our release policy.
It fixes an issue in the x/feegrant module on version <= v0.45.15. Cosmos SDK v0.46.x+ is not affected.
Please see the CHANGELOG for an exhaustive list of changes.
Full Commit History: https://github.com/cosmos/cosmos-sdk/compare/v0.45.15...v0.45.16
v0.45.15 is the last release of the v0.45.x line. Per this version, the v0.45.x line reached its end-of-life.
The SDK team maintains the two latest major versions of the SDK. This means no features, improvements or bug fixes will be backported to the v0.45.x line. Per our policy, the v0.45.x line will receive security patches only.
We encourage all chains to upgrade to the latest release of the SDK, or the v0.46.x line.
Refer to the upgrading guide for how to upgrade a chain to the latest release.