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Netty 4.0.0.CR6 released

We fixed more than a dozen issues in a week since CR5, and some of them were critical - hence a new release.

Noteworthy changes

  • SslHandler and JZlibEncoder now works correctly. (#1475 and #1471)
  • Android compatibility issues has been fixed. (#1451 and #1472)
  • voidPromise() works correctly now. (#1448)
  • SimpleChannelInboundHandler now releases the handled message by default. You can specify a boolean constructor parameter to revert to the old behavior (manual release). Note that other handler adapters do not release messages automatically. (#1446)
  • Making a connection attempt in NIO transport causes an IllegalStateException (#1467)
  • Various SPDY improvements from the folks at Twitter (#1456, #1463, #1476)
  • Less garbage production and efficiency fixes in SCTP transport (#1457)

Visit here for the complete list of the changes.


Every idea and bug-report counts and so we thought it is worth mentioning those who helped us. Please report an unintended omission.