Subj : Microsoft engineer clarif
To   : All
From : Dumas Walker
Date : Tue Dec 30 2025 09:42:02

Microsoft engineer clarifies speculation around plans to 'eliminate' C, C++
languages by 2030

Date:
Mon, 29 Dec 2025 18:35:00 +0000

Description:
Details have been clarified by a Microsoft engineer.

FULL STORY

In a LinkedIn post from Microsoft engineer Galen Hunt has generated a fair 
bit of talk after sharing his goal to "eliminate every line of C and C++ from
Microsoft by 2030" - even advertising an open position on his team to move
towards this. 

The roles purpose was to "help us [Microsoft] evolve and augment our
infrastructure to enable translating Microsofts largest C and C++ systems to
Rust"  with Hunt explaining that "powerful code processing infrastructure" 
has already been built. 

However, the engineer has since updated his post to say "Just to clarify...
Windows is *NOT* being rewritten in Rust with AI [...] My teams project is a
research project."

Project, not plan 

According to the post, Hunts teams mission is to "build capabilities to allow
Microsoft and our customers to eliminate technical debt at scale," with AI
processing infrastructure which "enables us to apply AI agents, guided by
algorithms, to make code modifications at scale. The core of this
infrastructure is already operating at scale on problems such as code
understanding." 

Although the post clarifies that this is just one teams research, the scale 
of the project seems to be pretty significant; "Our North Star is '1 
engineer, 1 month, 1 million lines of code'," Hunt explains, "to accomplish
this previously unimaginable task, weve built a powerful code processing
infrastructure. Our algorithmic infrastructure creates a scalable graph over
source code at scale." 

It is true, though, that Microsoft has initiated a shift towards the Rust
programming language  spending $10 million towards making it the "1st class
language" for engineering systems. 

This push is mirrored in Googles commitments, with the firm stating that
"memory safety bugs in C and C++ continue to be the most-difficult-to-address
source of incorrectness, as Rust joined Java and Kotlin in the Android Open
Source Project.

======================================================================
Link to news story:
https://www.techradar.com/computing/cloud-computing/microsoft-engineer-clarifi
es-speculation-around-plans-to-eliminate-c-c-languages-by-2030

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