We built our own package registry infrastructure, and PlatformIO Core 5.0 was the first release that had support for it. The legacy packages for Core 4.0 were hosted on Bintray. JFrog closed that project Service End for Bintray, JCenter, GoCenter, and ChartCenter | JFrog
No, we don’t provide bugfix releases for PlatformIO Core 4.0. We kept full compatibility in PlatformIO Core 5.0 with the previous projects created with PlatformIO Core 1.0-4.0. We discussed internally moving to INCREMENTAL releases. For example, year.month.counter, 2021.3.1, and keep FULL compatibility with previously created projects. It seems it’s time to do this.
The issue that happened with packageRepositories is our fault and we fixed it in 5.0. Now, all packages are hosted in a secure place and our customers can’t be affected when someone decides to “distribute” suspicious software (we had these incidents). I don’t mean your company. I’m sure your team does a good job.
Yes, you need Trusted Package Registry | PlatformIO Labs
Please email us at contact@piolabs.com and we will be happy to provide you a solution to host private packages.