[hugovk]

Description

The blog has moved from Blogger to a new one hosted on GitHub Pages:

• https://blog.python.org/2026/03/the-python-insider-blog-has-moved/

The feed is now at https://blog.python.org/rss.xml

https://blog.python.org/feeds/posts/default?alt=rss is a compatibility shim for the old feed, but because it's hosted on GH Pages, only the one with .xml gets the right content-type

❯ curl -I "https://blog.python.org/feeds/posts/default?alt=rss"
HTTP/2 200
server: GitHub.com
content-type: application/octet-stream
last-modified: Mon, 26 Oct 2026 04:31:30 GMT
access-control-allow-origin: *
etag: "6aded7a2-609e"
expires: Fri, 30 Oct 2026 08:56:55 GMT
cache-control: max-age=600
x-proxy-cache: HIT
x-github-request-id: 39E0:48C31:626219:63107D:6AE46DF6
x-github-edge-region: fra
accept-ranges: bytes
age: 328
date: Fri, 30 Oct 2026 11:49:44 GMT
via: 1.1 varnish
x-served-by: cache-hel1410021-HEL
x-cache: HIT
x-cache-hits: 0
x-timer: S1793360984.056830,VS0,VE1
vary: Accept-Encoding
x-fastly-request-id: d594ee322e2fbc68fb394e42ac582153d486f348
content-length: 24734

❯ curl -I "https://blog.python.org/rss.xml"
HTTP/2 200
server: GitHub.com
content-type: application/xml
x-origin-cache: HIT
last-modified: Mon, 26 Oct 2026 04:31:30 GMT
access-control-allow-origin: *
etag: "6aded7a2-609e"
expires: Fri, 30 Oct 2026 11:28:24 GMT
cache-control: max-age=600
x-proxy-cache: MISS
x-github-request-id: ECAC:1C502A:8620DB:8709C2:6AE47CFF
x-github-edge-region: fra
accept-ranges: bytes
date: Fri, 30 Oct 2026 11:49:27 GMT
via: 1.1 varnish
age: 277
x-served-by: cache-hel1410031-HEL
x-cache: HIT
x-cache-hits: 1
x-timer: S1793360967.161366,VS0,VE1
vary: Accept-Encoding
x-fastly-request-id: 91f096629fdf155ea9aa5aceaa6650bd939c309c
content-length: 24734

The fix is to use https://blog.python.org/rss.xml, as recommended by https://blog.python.org/2026/03/the-python-insider-blog-has-moved/, and also use that in our links.

Closes

• Fixes Bug: RSS feed is served as 'application/octet-stream' instead of 'application/rss+xml' #3203

[Copilot]

🟡 Changes recommended

The changes leave existing Box content and Feed URLs unmigrated, so deployed installations retain the stale sidebar link and lose supernav updates.

2 open issues

• Add migration to update existing blogs subscription Box · New
• Migrate existing Python Insider feed URL · New

What changed in this PR

Updates Python Insider feed references to https://blog.python.org/rss.xml following the blog’s move to GitHub Pages, addressing the incorrect content type reported in #3203.

Changes:

• Uses the new feed URL in site-wide feed discovery and blog settings.
• Updates the subscription sidebar’s seed content and rendered HTML.

File	Description
templates/​base.html	Updates the Python Insider feed-discovery link.
pydotorg/​settings/​base.py	Changes the configured Python Insider feed URL.
fixtures/​boxes.json	Updates the seeded sidebar RSS link in both content fields.

_{Review effort: Balanced}

[Copilot]

🟢 Approval recommended

No active review issues were identified for the Python Insider feed URL update.

2 open issues

• Migrate existing Python Insider feed URL
• Add migration to update existing blogs subscription Box

_{Review effort: Balanced}