Hi, without going into too many details, the Guava team acknowledged the problems coming from Guava breaking backward-compatibility regularly and started to be more strict and thoughtful about evolving the library.
Starting with Guava 21.0, all releases should be backward-compatible down to that version: https://github.com/google/guava/blob/master/README.md#important-warnings <https://github.com/google/guava/blob/master/README.md#important-warnings> > APIs without @Beta will remain binary-compatible for the indefinite future. > (Previously, we sometimes removed such APIs after a deprecation period. The > last release to remove non-@Beta APIs was Guava 21.0.) Even @Deprecated APIs > will remain (again, unless they are @Beta). We have no plans to start > removing things again, but officially, we're leaving our options open in case > of surprises (like, say, a serious security problem). > See also: https://github.com/google/guava/wiki/ReleasePolicy <https://github.com/google/guava/wiki/ReleasePolicy> So my suggestion is raising the minimum version to at least Guava 21.0 which is most likely to be "forward-compatible" with new Guava versions. Cheers, Jochen > Am 27.07.2020 um 23:01 schrieb Tatu Saloranta <t...@fasterxml.com>: > > Fast-forward to Coronarific 2020, situation is such that Jackson 2.10 > and 2.11 require Guava v20 as baseline. > They may or may not work with older versions (does anyone have > information? I can probably test this relatively easily), > maybe down to v18 or even v16, but guaranteed for v20 wrt automated testing. > Jackson 3.0 uses baseline of v25 but since that is not about to be > released in near future, that is probably less relevant. > > Baseline for Jackson 2.12 is not yet determined. I could leave it at > v20, but there is a new interesting PR: > > https://github.com/FasterXML/jackson-datatypes-collections/pull/69 > <https://github.com/FasterXML/jackson-datatypes-collections/pull/69> > > which seems to require v23. Now, based on my work outside of Jackson I > know that Guava version dependencies > are tricky due to its wide usage and Guava maintainers aggressive > deprecation of old features: libraries tend to work > with some range of Guava versions, and in case of Jackson we need to > balance needs of those using latest versions > (which typically work ok with Jackson, fortunately) with those who > have dependencies to things that only work with > older Guava versions. > > I think 2 main options would be to: > > 1. Keep v20 minimum > 2. Upgrade minimum to v23 (which v25 is bit more widely used it seems > there is some value in conservative updates) > > Does anyone know of practical consequences of version upgrades; any > well-known limitations that might favor use of > specific Guava version (as I recall, v19/v20 tended to be reasonably > good versions wrt compatibility for things that need > older Guava)? > Or have opinions, suggestions? > > -+ Tatu +- > > On Thu, Jun 28, 2018 at 9:57 AM Tatu Saloranta <t...@fasterxml.com > <mailto:t...@fasterxml.com>> wrote: >> >> Quick note: as per: >> >> https://github.com/FasterXML/jackson-datatypes-collections/issues/23 >> >> there is desire to >> >> (a) Extend range of allowed Guava versions to include 23, and >> (b) Update minimum version supported from 18 to something later >> >> both for Jackson 3.x (less of a concern since it'll be out at earliest >> by end of 2018), and >> for 2.10 (more concern). >> >> I know Guava has traditionally been quite aggressive in deprecating >> and removing functionality so I hesitate to simply change version deps >> and hope for the best. >> But at the same time we do need to try to balance needs of users >> relying on newer versions with those of stability. >> >> So.... if anyone has time and interest to investigate what kind of >> dependency upgrade would be good trade-off, that would be good. :) >> >> For what it is worth, Jackson 3.x currently upgrades dependency from >> 18.0 to 20.0, so perhaps that would be the starting hypothesis -- we >> would try to make Guava module of Jackson 2.10 to work with Guava >> versions [20.0 ... 23.0]? >> >> -+ Tatu +- > > -- > You received this message because you are subscribed to the Google Groups > "jackson-dev" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to jackson-dev+unsubscr...@googlegroups.com > <mailto:jackson-dev+unsubscr...@googlegroups.com>. > To view this discussion on the web visit > https://groups.google.com/d/msgid/jackson-dev/CAL4a10jESmj0hPryNJ9O2-%2By8LQngnSHMoTO3Do1h3kSe8fUGw%40mail.gmail.com > > <https://groups.google.com/d/msgid/jackson-dev/CAL4a10jESmj0hPryNJ9O2-%2By8LQngnSHMoTO3Do1h3kSe8fUGw%40mail.gmail.com>. -- You received this message because you are subscribed to the Google Groups "jackson-dev" group. To unsubscribe from this group and stop receiving emails from it, send an email to jackson-dev+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/jackson-dev/8FB6BF52-5DB0-4735-9049-AB5AC69AFF15%40schalanda.name.
