Backport TcpFraming magic - #3444
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* support PEKK TCP magic * scalafmt
pjfanning
marked this pull request as draft
August 15, 2026 21:20
pjfanning
marked this pull request as ready for review
August 16, 2026 11:31
Philippus
approved these changes
Aug 16, 2026
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cherry pick 6574499 #3425
The 1.7 config retains AKKA as the default but adds PEKK as acceptable which allows rolling updates with Pekko 2.x nodes.
The new config is
pekko.remote.artery.advanced.tcp-magicand defaults to["AKKA", "PEKK"]allowing compatibility with Akka, Pekko 1.x and Pekko 2.x. The default magic value for Pekko 2.x will be "PEKK" instead of "AKKA" (existing default).