# 2025 Core Dev Sprint: 15th-19th September at Arm Ltd in Cambridge, UK

**URL:** https://discuss.python.org/t/2025-core-dev-sprint-15th-19th-september-at-arm-ltd-in-cambridge-uk/71909
**Category:** Committers
**Created:** [November 21, 2024, 5:01pm UTC](https://discuss.python.org/t/2025-core-dev-sprint-15th-19th-september-at-arm-ltd-in-cambridge-uk/71909 "2024-11-21T17:01:03Z")
**Posts on this page:** 16
**Page:** 1

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### Author: ![diegor](https://sea2.discourse-cdn.com/flex002/user_avatar/discuss.python.org/diegor/32/34816_2.png) [@diegor](https://discuss.python.org/u/diegor)
#### Post date: [November 21, 2024, 5:01pm UTC](https://discuss.python.org/t/2025-core-dev-sprint-15th-19th-september-at-arm-ltd-in-cambridge-uk/71909/1 "2024-11-21T17:01:03Z")

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Hello folks 👋

I am thrilled to announce that Arm Ltd will be hosting the 2025 Core Dev Sprint at [our headquarters in Cambridge, UK.](https://maps.app.goo.gl/64ufdD9LcctBVxadA) 🇬🇧  
There is some flexibility about the availability of the venue. Please mark your preference.

_Poll ([view on site](https://discuss.python.org/t/2025-core-dev-sprint-15th-19th-september-at-arm-ltd-in-cambridge-uk/71909/1))_

I’ll keep the poll open for two weeks to allow ample time for people to express their preferences. More details will be shared soon.

We appreciate the Steering Council’s acceptance of our proposal!

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### Author: ![willingc](https://sea2.discourse-cdn.com/flex002/user_avatar/discuss.python.org/willingc/32/20_2.png) [@willingc](https://discuss.python.org/u/willingc)
#### Post date: [November 21, 2024, 5:17pm UTC](https://discuss.python.org/t/2025-core-dev-sprint-15th-19th-september-at-arm-ltd-in-cambridge-uk/71909/2 "2024-11-21T17:17:48Z")

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Great news! Thanks for sharing @diegor.

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### Author: ![hugovk](https://sea2.discourse-cdn.com/flex002/user_avatar/discuss.python.org/hugovk/32/14505_2.png) [@hugovk](https://discuss.python.org/u/hugovk)
#### Post date: [November 22, 2024, 10:29am UTC](https://discuss.python.org/t/2025-core-dev-sprint-15th-19th-september-at-arm-ltd-in-cambridge-uk/71909/3 "2024-11-22T10:29:17Z")

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Reminder that Python 3.14.0 final is [planned](https://peps.python.org/pep-0745/) for Wednesday 1st October 2025 (hopefully we won’t need to revert anything last minute this time 🙃).

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### Author: ![diegor](https://sea2.discourse-cdn.com/flex002/user_avatar/discuss.python.org/diegor/32/34816_2.png) [@diegor](https://discuss.python.org/u/diegor)
#### Post date: [January 10, 2025, 2:01pm UTC](https://discuss.python.org/t/2025-core-dev-sprint-15th-19th-september-at-arm-ltd-in-cambridge-uk/71909/4 "2025-01-10T14:01:01Z")

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Hi everyone,

Thanks a lot for voting in the poll and for being so patient. 🙏

After looking at the results and talking to everyone who voted, I’m glad to confirm that the Core Dev Sprint 2025 will be happening from **September 15th to 19th, 2025 at [Arm Ltd’s headquarter in Cambridge, UK](https://maps.app.goo.gl/64ufdD9LcctBVxadA) 🇬🇧**

In the coming weeks, we’ll put together all the info you need about the logistics of the event, just like Itamar and Petr did in the past.

In the meantime, if you have any questions, feel free to ask me either privately on Discord or here in this thread.

Thanks again for the opportunity to host this event. We really look forward to it.

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### Author: ![guido](https://sea2.discourse-cdn.com/flex002/user_avatar/discuss.python.org/guido/32/21_2.png) [@guido](https://discuss.python.org/u/guido)
#### Post date: [January 11, 2025, 9:28pm UTC](https://discuss.python.org/t/2025-core-dev-sprint-15th-19th-september-at-arm-ltd-in-cambridge-uk/71909/5 "2025-01-11T21:28:18Z")

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We should invite Jukka (mypy’s author), he lives in Cambridge and is a member of the typing council.

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### Author: ![diegor](https://sea2.discourse-cdn.com/flex002/user_avatar/discuss.python.org/diegor/32/34816_2.png) [@diegor](https://discuss.python.org/u/diegor)
#### Post date: [January 13, 2025, 11:38am UTC](https://discuss.python.org/t/2025-core-dev-sprint-15th-19th-september-at-arm-ltd-in-cambridge-uk/71909/6 "2025-01-13T11:38:21Z")

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I sent him a message here in Discuss hoping he reads it. Otherwise I need to scout for his email.

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### Author: ![diegor](https://sea2.discourse-cdn.com/flex002/user_avatar/discuss.python.org/diegor/32/34816_2.png) [@diegor](https://discuss.python.org/u/diegor)
#### Post date: [March 10, 2025, 2:30pm UTC](https://discuss.python.org/t/2025-core-dev-sprint-15th-19th-september-at-arm-ltd-in-cambridge-uk/71909/7 "2025-03-10T14:30:32Z")

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Folks, we’re now ready to take attendance for the Core Dev Sprint 2025 at Arm Ltd. If you’d like to attend, please fill out the following form:

_Note: This form is only for CPython core developers, triagers, and invitees._

> **[Python Core Dev Sprint 2025 @ Arm Ltd RSVP](https://forms.gle/L8pzUAnaMs19nvrw8)**
>
> The PSF & Arm Ltd will hold the Python Core Dev Sprint from September 15th to 19th, 2025. Arm is our host and sponsor this year; they are located at 110 Fulbourn Road, CB19NJ, Cambridge, UK.
> 
> To help us plan logistics please RSVP by Monday, March...

Please submit the form by **Monday, March 31st, 2025, 23:59 GMT** (3 weeks from now).

In the meantime, we’re working on a public document to gather all the necessary information for event logistics.

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<div class="post-metadata">

### Author: ![diegor](https://sea2.discourse-cdn.com/flex002/user_avatar/discuss.python.org/diegor/32/34816_2.png) [@diegor](https://discuss.python.org/u/diegor)
#### Post date: [March 24, 2025, 3:30pm UTC](https://discuss.python.org/t/2025-core-dev-sprint-15th-19th-september-at-arm-ltd-in-cambridge-uk/71909/8 "2025-03-24T15:30:34Z")

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Folks, this is a gentle reminder for people who haven’t signed up yet! **You have time until March 31st (1 week to go)** to fill out the form: [https://forms.gle/L8pzUAnaMs19nvrw8](https://forms.gle/L8pzUAnaMs19nvrw8)

All the details are in the logistics document I shared on Discord (let me know if you need the link).

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<div class="post-metadata">

### Author: ![diegor](https://sea2.discourse-cdn.com/flex002/user_avatar/discuss.python.org/diegor/32/34816_2.png) [@diegor](https://discuss.python.org/u/diegor)
#### Post date: [March 31, 2025, 9:45am UTC](https://discuss.python.org/t/2025-core-dev-sprint-15th-19th-september-at-arm-ltd-in-cambridge-uk/71909/9 "2025-03-31T09:45:17Z")

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⚠ Hello, this is the **last reminder** to sign up for the _Core Dev Sprint 2025 @ Arm Ltd, UK_. ⚠  
If you want to go, please fill out the RSVP form [https://forms.gle/L8pzUAnaMs19nvrw8](https://forms.gle/L8pzUAnaMs19nvrw8) **by today 23:59 BST**.

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<div class="post-metadata">

### Author: ![diegor](https://sea2.discourse-cdn.com/flex002/user_avatar/discuss.python.org/diegor/32/34816_2.png) [@diegor](https://discuss.python.org/u/diegor)
#### Post date: [May 19, 2025, 9:35pm UTC](https://discuss.python.org/t/2025-core-dev-sprint-15th-19th-september-at-arm-ltd-in-cambridge-uk/71909/10 "2025-05-19T21:35:22Z")

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Hello, I’ve just sent out the confirmation email for the core dev sprint!

It includes all the key details (dates, location, logistics doc, and Discord channel). If you were expecting it but didn’t receive it, feel free to ping me.

Looking forward to seeing you all in Cambridge in September!

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### Author: ![brettcannon](https://sea2.discourse-cdn.com/flex002/user_avatar/discuss.python.org/brettcannon/32/34895_2.png) [@brettcannon](https://discuss.python.org/u/brettcannon)
#### Post date: [May 20, 2025, 9:04pm UTC](https://discuss.python.org/t/2025-core-dev-sprint-15th-19th-september-at-arm-ltd-in-cambridge-uk/71909/11 "2025-05-20T21:04:12Z")

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> [@diegor](#):
>
> I’ve just sent out the confirmation email for the core dev sprint!

FYI I found it in my spam folder.

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<div class="post-metadata">

### Author: ![diegor](https://sea2.discourse-cdn.com/flex002/user_avatar/discuss.python.org/diegor/32/34816_2.png) [@diegor](https://discuss.python.org/u/diegor)
#### Post date: [May 21, 2025, 9:12am UTC](https://discuss.python.org/t/2025-core-dev-sprint-15th-19th-september-at-arm-ltd-in-cambridge-uk/71909/12 "2025-05-21T09:12:38Z")

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Yes, unfortunately you weren’t the only one ☹

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<div class="post-metadata">

### Author: ![diegor](https://sea2.discourse-cdn.com/flex002/user_avatar/discuss.python.org/diegor/32/34816_2.png) [@diegor](https://discuss.python.org/u/diegor)
#### Post date: [May 22, 2025, 2:02pm UTC](https://discuss.python.org/t/2025-core-dev-sprint-15th-19th-september-at-arm-ltd-in-cambridge-uk/71909/13 "2025-05-22T14:02:26Z")

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Folks, a quick update on the core dev sprint.

in the last few days I’ve been getting a few more requests to join the core dev sprint. Whilst it is great to see interest it is not doable as we’re currently **at full capacity**. 🎆

At this point, we’re operating a **waiting list** ⏳ in case any confirmed attendees can no longer make it. If a spot opens up, I’ll reach out to the next person on the list.

Thanks for understanding 🙏

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<div class="post-metadata">

### Author: ![diegor](https://sea2.discourse-cdn.com/flex002/user_avatar/discuss.python.org/diegor/32/34816_2.png) [@diegor](https://discuss.python.org/u/diegor)
#### Post date: [August 19, 2025, 9:21pm UTC](https://discuss.python.org/t/2025-core-dev-sprint-15th-19th-september-at-arm-ltd-in-cambridge-uk/71909/14 "2025-08-19T21:21:37Z")

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In the last couple of weeks we had a few cancellations. We were able to invite a few people in the waiting list. From now on, no more changes are allowed.

See you in Cambridge in less than a month.

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### Author: ![taleinat](https://sea2.discourse-cdn.com/flex002/user_avatar/discuss.python.org/taleinat/32/92_2.png) [@taleinat](https://discuss.python.org/u/taleinat)
#### Post date: [September 25, 2025, 5:47pm UTC](https://discuss.python.org/t/2025-core-dev-sprint-15th-19th-september-at-arm-ltd-in-cambridge-uk/71909/15 "2025-09-25T17:47:01Z")

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The Core Dev Sprint was great! Thanks for the exceptional organization, @diegor!

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### Author: ![system](https://us1.discourse-cdn.com/flex002/uploads/python1/original/1X/3aff56846ebe57781a163dfc748fd1417119d8ab.png) [@system](https://discuss.python.org/u/system)
#### Post date: [November 21, 2025, 5:01pm UTC](https://discuss.python.org/t/2025-core-dev-sprint-15th-19th-september-at-arm-ltd-in-cambridge-uk/71909/16 "2025-11-21T17:01:22Z")

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