hmac.new() default parameter change not mentioned in changelog

@wbond

BPO	39547
Nosy	@wbond

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GitHub fields:

assignee = None
closed_at = None
created_at = <Date 2020-02-03.22:59:34.267>
labels = ['3.8', 'docs']
title = 'hmac.new() default parameter change not mentioned in changelog'
updated_at = <Date 2020-02-03.22:59:34.267>
user = 'https://github.com/wbond'

bugs.python.org fields:

activity = <Date 2020-02-03.22:59:34.267>
actor = 'wbond'
assignee = 'docs@python'
closed = False
closed_date = None
closer = None
components = ['Documentation']
creation = <Date 2020-02-03.22:59:34.267>
creator = 'wbond'
dependencies = []
files = []
hgrepos = []
issue_num = 39547
keywords = []
message_count = 1.0
messages = ['361329']
nosy_count = 2.0
nosy_names = ['docs@python', 'wbond']
pr_nums = []
priority = 'normal'
resolution = None
stage = None
status = 'open'
superseder = None
type = None
url = 'https://bugs.python.org/issue39547'
versions = ['Python 3.8']

When running code on Python 3.8 that previous was running 3.3, I ran into the issue that the default value for the digestmod parameter of hmac.new() has been changed to backwards-incompatible value.

I generally would have expected such a break to show up in https://docs.python.org/3/whatsnew/3.8.html#api-and-feature-removals. If not there, somewhere on the 3.8 changelog page.

The removal does seem mentioned under the function section, but I wonder if it should be also noted in the changelog

It's documented in the 3.4 changelog, https://docs.python.org/3/whatsnew/3.4.html#hmac

I would not object to add a note to the "porting to 3.8" section.

gh-83728: Add hmac.new default parameter deprecation (GH-91939)

pythongh-83728: Add hmac.new default parameter deprecation (pythonGH-…

gh-83728: Add hmac.new default parameter deprecation (GH-91939) (GH-9…

Fixed in 3.8+.

Revert 30935 defer bpo45162 to 312 (#94285)

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hmac.new() default parameter change not mentioned in changelog #83728

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hmac.new() default parameter change not mentioned in changelog #83728

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wbond commented on Feb 3, 2020

slateny commented on Apr 25, 2022

tiran commented on Apr 25, 2022

tiran commented on Apr 25, 2022

ambv commented on Jun 6, 2022

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