# Thunderbird Monthly Development Digest: November/December 2025

DevFeed: [Thunderbird Monthly Development Digest: November/December 2025](<https://devfeed.tech/articles/thunderbird-monthly-development-digest-november-december-2025-50458.md>)

Original publisher: [Read original article](<https://blog.thunderbird.net/2025/12/thunderbird-monthly-development-digest-december-2025/>)

Author: Monica Ayhens-Madon

Published: 2025-12-17T17:23:05Z

Content type: news

Language: en

Sources: [The Thunderbird Blog](<https://devfeed.tech/sources/the-thunderbird-blog.md>)

Topics: [software-development](<https://devfeed.tech/topics/software-development.md>), [Authentication](<https://devfeed.tech/topics/authentication.md>), [API](<https://devfeed.tech/topics/api.md>), [configuration](<https://devfeed.tech/topics/configuration.md>)

Tags: [account-hub](<https://devfeed.tech/tags/account-hub.md>), [api](<https://devfeed.tech/tags/api.md>), [authentication](<https://devfeed.tech/tags/authentication.md>), [blog](<https://devfeed.tech/tags/blog.md>), [calendar](<https://devfeed.tech/tags/calendar.md>), [configuration](<https://devfeed.tech/tags/configuration.md>), [development](<https://devfeed.tech/tags/development.md>), [development-digest](<https://devfeed.tech/tags/development-digest.md>), [dns](<https://devfeed.tech/tags/dns.md>), [exchange](<https://devfeed.tech/tags/exchange.md>), [release](<https://devfeed.tech/tags/release.md>), [thunderbird](<https://devfeed.tech/tags/thunderbird.md>)

## AI overview

Thunderbird's development team reports that Exchange email support has shipped to the Monthly release channel, including NTLM authentication, request queueing, DNS-related crash fixes, folder-operation improvements, password-on-send prompting, and additional hardening. The team has also started work on Graph API email support and planned architectural refactoring and related integrations.

## Source excerpt

Hello again from the Thunderbird development team as we start to wind down for the holidays! Over the past several weeks, our sprints have been focused on delivery and consolidation to clear our plates for a fresh start in the New Year. Following our successful in-person work-week to discuss all things protocol, we've brought Exchange [...] The post Thunderbird Monthly Development Digest: November/December 2025 appeared first on The Thunderbird Blog.