We have found 2 regression bugs introduced in 0.12.0 1. SIGSEGV error in 0.12.0 with zstd compression enabled, when the producer is shared between multiple goroutines(https://github.com/apache/pulsar-client-go/issues/1163). This issue has been fixed by https://github.com/apache/pulsar-client-go/pull/1164. Thank @ben(https://github.com/0x4500) for discovering and reporting this issue. 2. Race condition issue when sending multiple messages concurrently. This has also been fixed by https://github.com/apache/pulsar-client-go/pull/1164
These two regression bugs arose because we refactored the producer's publishing logic in version 0.12.0. We moved the message compression and sequence ID assignment from the producer's internal goroutine to the user's goroutine, which led to concurrency problems. We need to trigger a new release 0.12.1 to address these bugs. Please let me know if you have any PRs that need to be included in 0.12.1. BR, Zike Yang
