1Dancer2::DeprecationPolUisceyr(3C)ontributed Perl DocumeDnatnacteiro2n::DeprecationPolicy(3)
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6 Dancer2::DeprecationPolicy - Define the process by which
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9 version 0.400000
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12 While there are conflicting ideas about deprecation, in Dancer2,
13 deprecated code is code that:
14 • Is in the way of implementing important features or fixes that
16 provide more value.
17 • Has a negative impact on the integrity and security of user code,
19 whether by misusing it to not.
20 • Provides a negative experience for the users.
22 Deprecated code is code we either had to write and can now remove or we
24 thought was a good idea and were wrong. It is code that doesn't overall
25 benefit users or the developers.
26 Deprecated code is code that is marked for eventual removal and we do
28 not intend to keep in the Dancer2 codebase.
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31 • Code to be deprecated is posted/discussed publicly (see below)
32 • Deprecated code enters soft deprecation phase
34 • After 12 months or 2 major releases, code is hard deprecated
36 • After 6 months or 1 major release, hard deprecated code is removed
38 Deprecated code is marked with warnings and the version and/or date in
40 which it will no longer be available.
41 Public Notice
43 When a feature/code is to be deprecated, the Dancer Core Team will
44 create a new GitHub issue for the code/feature to be deprecated, and
45 announce this in a public manner (blog post, Twitter, and the mailing
46 list, at minimum). The notice should provide the reason for the
47 deprecation, what Dancer2/the community is gaining as a result of the
48 deprecation, and what the officially recognized alternative to the
49 deprecated code is.
50 The public notice period will provide the developer/user base an
52 opportunity to voice objections or provide feedback or alternatives to
53 deprecation. It also allows the Core Team to better assess the
54 potential long range effects of deprecation.
55 While the deprecated feature/code can be discussed by community, the
57 decision will be ultimately made by the Dancer Core Team. There is no
58 definitive time for the public notice period to end; some deprecations
59 are more urgent than others, and each situation is left to the
60 discretion of the Core Team, with feedback from the community.
61 Soft Deprecation
63 When code is soft deprecated, a warning will be thrown to indicate that
64 the code is to be considered deprecated. Apps will continue to function
65 normally otherwise.
66 Hard Deprecation
68 After 12 months or two major releases (whichever comes first), the code
69 is considered to be hard deprecated. An error will continue to be
70 thrown, but unlike soft deprecation, continued usage of the deprecated
71 code will cause the application to die.
72 There is one caveat to this: code will never be deprecated for less
74 than 6 months. So if we deprecate code after v0.500000, become
75 unusually productive, and produce Dancer 0.600000 and 0.700000 in a two
76 month timeframe, no deprecated code will be removed because 6 months
77 hasn't elapsed.
78 Removal
80 Six months following hard deprecation, or one major release after hard
81 deprecation, the deprecated code is removed from Dancer2.
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84 In special cases, based on community feedback, these timelines may be
85 extended. But we expect this to be a rare occurrence, at best.
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88 We strongly encourage (but cannot/do not require) plugin authors to
89 adopt the same policy.
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92 Dancer Core Developers
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95 This software is copyright (c) 2022 by Alexis Sukrieh.
96 This is free software; you can redistribute it and/or modify it under
98 the same terms as the Perl 5 programming language system itself.
99perl v5.36.0 2023-01-20 Dancer2::DeprecationPolicy(3)