GET /releases/branches.php serves stale/inconsistent latest from CDN edge cache

[z-Fng]

Affected Page URL

https://www.php.net/releases/branches.php

Describe the bug

Since around the 8.5.10 release, repeated requests for this endpoint intermittently return "latest": "8.5.9" or "latest": "8.5.10" for the 8.5 branch.

Steps to reproduce

Some package managers rely on this for latest release detection, as evidenced by version checks and upgrades flapping between two versions.

• https://github.com/ScoopInstaller/Main/commits/master/bucket/php.json
• https://github.com/ScoopInstaller/Versions/commits/master/bucket/php84.json
• https://github.com/ScoopInstaller/Versions/commits/master/bucket/php85.json

Expected behavior

/releases/branches.php should be effectively up-to-date and consistent for consumers. Ideally the CDN purges /releases/branches.php whenever release data is deployed.

Screenshots

Additional context

No response

[z-Fng]

As the cache expired or the CDN cache was purged, this issue no longer occurred. Hope this API endpoint is more reliable.

[z-Fng]

It seems to have happened again. Any updates on investigating what went wrong?

web-php/openapi.yml

Line 55 in 50614dc

"/releases/branches.php":

Did I miss something? Is there any specific reason the CDN cache for this API is set to expire in 30 days and is not purged?