Hi Victor,
On 2016年12月13日 02:57, Victor J. Orlikowski wrote: > On Mon, Dec 12, 2016, at 11:21 AM, IWAMOTO Toshihiro wrote: >> For maintaining API compatibility, having one or two release cycles of >> deprecation period, which raises warning messages if deprecated APIs >> are used, will help users. OTOH, deprecation cycles slow down >> depelopment and I am not aware of which policy ryu should take. >> > > Agreed, given that I have run afoul of this before. > > I think Fujita-San should give some guidance here, but, in my > opinion, APIs that are deprecated should probably be maintained for > *up to* 2-3 release cycles, based on degree of user impact. > > How do we judge whether user impact is high? > 1) The deprecated APIs are ones that have been used for examples/are > in documentation/are "recommended" in one way or another. > > AND/OR > > 2) The deprecated APIs have been present for 3 or more release > cycles (and therefore have a reasonable probability of having been > used in user applications). > > > Given these conditions, a 2-3 release cycle "grace period" for > deprecated APIs that subjectively satisfy them seems prudent. > > For "accidents" that can happen as a result of rapid development (an > API that was added for one release cycle, and was not "widely > advertised") - a much shorter "grace period" may be OK (perhaps > even no grace period at all - but I'm not necessarily advocating for > that). The presumption is that the "accidents" will be infrequent, > and quickly caught (if they were not resolved during the review on > the list). Thank you for many advice! I think it is helpful if this consideration is stipulated on any document. e.g., https://github.com/osrg/ryu/blob/master/CONTRIBUTING.rst http://osrg.github.io/ryu-book/en/html/contribute.html I'm sorry if it is obvious on OSS projects... Thanks, Iwase > > Best, > Victor > ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, SlashDot.org! http://sdm.link/slashdot _______________________________________________ Ryu-devel mailing list Ryu-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/ryu-devel
