[DISCUSS] Denied creating subscriptions with special characters other than underscores and dash

Hi all ### Background Issue 1 Topic name rule - old version: `{tenant}/{cluster}/{namespace}/{topic}/{subscription}` - new version: `{tenant}/{namespace}/{topic}/{subscription}` There are many HTTP APIs defined as `HTTP Method {topic name}/{subscription name}` If a subscription contains `/

Pulsar 3.0.8, 3.3.3 & 4.0.1 releases starting; support for 3.3.x ends on Dec 5, 2024

Dear Pulsar community, It's time for the next set of maintenance releases for 3.0.x, 3.3.x and 4.0.x. The last set of releases were made on Oct 4th (3.0.7, 3.3.2) and Oct 21st (4.0.0). I'll create the release candidates for 3.0.8, 3.3.3 and 4.0.1 as soon as possible. For 3.3.x, the active sup