-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 Mark,
On 9/27/19 12:18, Mark Thomas wrote: > On 27/09/2019 14:38, KM wrote: >> I saw the announcement of the latest 8.5.x version of Tomcat. >> Has anyone heard of an EOL date for Tomcat 8.5.x? I haven't seen >> anything about it anywhere. I saw 8.0.x was EOL. We are using >> embedded Tomcat 8.5 now and want to upgrade to the latest. >> >> We were considering upgrading to 9.0.x, but were wondering how >> much official time we had before it was required. >> >> Thanks in advance for any information. > > There is no official date. > > The Tomcat project maintains 3 major versions in parallel. > Currently these are: - 9.0.x - 8.5.x - 7.0.x > > We always provide at least 12 months notice of EOL. > > Major releases are aligned with releases of the Servlet > specification. The current timetable for the next Servlet spec is > TBD. > > We haven't even announced EOL for 7.0.x yet so you have: - x years > until Tomcat 10 / Servlet 4.next is released - 1 year for 7.0.x > EOL That should be "x+1 year for 7.0.x EOL". > - y years until Tomcat 11 / Servlet 4.next+1 is released - 1 year > for 8.5.x EOL Similarly, that should be "y+1 year for 8.5.x EOL". > Taking low estimates for x and y of 1 and 2 respectively, you have > at least 5 years before 8.5.x is EOL. > > Take that figure as an "Engineering Estimate". Also known as a > "wild guess". It's also worth noting that we have had two ".5" releases over the past two decades, and those have accelerated the EOL dates of their predecessors. I'm specifically speaking of Tomcat 5.5 and 8.5, both of which caused 5.0 and 8.0 so be sunsetted somewhat "early" from the usual length of time a Tomcat release would normally be supported. In both cases, the ".5" releases were seen as (a) breaking changes from their respective ".0" releases and (b) far superior in terms of technology (or features) and/or compatibility with later versions. Tomcat 8.0 died early because of significant changes to the Connector architecture to support H2 (and, somewhat belatedly, Websocket) including the abandoning of the blocking-IO connectors. Tomcat 9.0 had to be delayed due to the delays in the release of the Java EE Servlet 4.0 specification. It became obvious that Tomcat 8.5 would be more useful to the community over the long-term so the decision was made to build a ".5" version and move forward. Tomcat 8.5 represents all of the great things in Tomcat 9.0 that didn't depend upon the Servlet API release but were in great demand by the community. Tomcat 9.0 was released shortly thereafter with many of the same features, plus support for Servlet 4.0. It's conceivable that Tomcat 9.0 may receive the same treatment when Tomcat 10 begins to take shape, but my "engineering estimate" is that it's quite unlikely. - -chris -----BEGIN PGP SIGNATURE----- Comment: Using GnuPG with Thunderbird - https://www.enigmail.net/ iQIzBAEBCAAdFiEEMmKgYcQvxMe7tcJcHPApP6U8pFgFAl2TeYUACgkQHPApP6U8 pFgrJBAApRUp9dDKympIFQp+TRRNVDVlu8pEqoIs3ok0hMPxlMkaF9ObUyyerKuV ROxdMtcHe85KPMJRyf+xzTZdcjGZ8t3OwmzAOui6nhJjhAJYxwbUGaGO6U+hxCnF 9pJT/JNi2JR2+yPIbMATIBghi3Nsuc4iL3Wd70a+Y3x8mtiT+hluISjgcICC4Xh9 HJPM/punZ6al6+E3X0mZaJTfpOrB8uv4DFapKLYIJIOYKTUkC40U2qqoXy+3ut1v LFHBZy7BU98zTUwd2AAAQBS2eo7u7hpmeibC12avJANY4Nnbo7RbTCltkrCwKzs3 1YUFK+dKCdCMUsZPnRQ2dOC/ubp+MAGxOtU0wleD7GBHz3j4lHqee5E/2oeIqjaN wMdnhOiDtc/Wxq03jmZ9K88AJp9nVm22MOGImcT9l0cGlqE+/vq85qIFEK2FyOK2 sSdOwt4NQEPUn1/97tVgNbHQVAXPnToeepEkma1LqCxBgS44aj45JGXK6GAloHbE QDzhAXHURT9QDc9uplQAZ2sieJpm2V0KuLYhXGnDS+pIGUuTNnqNJ3vPRGpNZm+3 JUD1nhMY2JdGBzmUqL6iJkZ2ldf49jLZqFLV+Orns4cFlLlHn47qVUMOHDRt9cpF VL23ZLksScIQ2xMxl6gVOLfVitRafHgQjb/eU/bcdNRkOgFqYyA= =h5i6 -----END PGP SIGNATURE----- --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
