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Unity-Technologies
UnityCsReference
C#2018–2023
Unity-Technologies / UnityCsReference

UnityCsReference

Unity C# reference source code.

Learning & Reference
Explore on GitHubRead Hacker News discussions
13Distinct people
14Mentions
0Explicit recommenders
13.1KGitHub stars
REPOSITORY AT A GLANCE

What to know before exploring

What it is

Unity C# reference source code.

GitHub

Where it is used

No documented product use was verified in the last source check.

What people are saying

No recommendation phrase was found in the indexed comments.

No classified warning is attached to this page. Read the discussions before treating silence as approval.

Also in these discussions

Mentioned in the same Hacker News threads. That is not proof they are substitutes.

This week on Hacker News

Nov 7–Nov 14 UTC · Direct repository links and separately labeled related project stories. Indexed through 11/14/2026, 5:04:57 PM UTC.

No direct repository links were found in the indexed HN discussions over the past seven days. Older discussions are available below.

Mentions over time

HN mentions by year14 dated mentions

Observed mentions: 2018-03-24 09:43:59 UTC to 2023-09-23 01:12:40 UTC.

0123452018-01-01 00:00:00 UTC to 2019-01-01 00:00:00 UTC (exclusive): 4 mentions; 2 submissions, 2 comments20182019-01-01 00:00:00 UTC to 2020-01-01 00:00:00 UTC (exclusive): 3 mentions; 0 submissions, 3 comments2020-01-01 00:00:00 UTC to 2021-01-01 00:00:00 UTC (exclusive): 1 mentions; 0 submissions, 1 comments20202021-01-01 00:00:00 UTC to 2022-01-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2022-01-01 00:00:00 UTC to 2023-01-01 00:00:00 UTC (exclusive): 5 mentions; 1 submissions, 4 comments2023-01-01 00:00:00 UTC to 2024-01-01 00:00:00 UTC (exclusive): 1 mentions; 0 submissions, 1 comments2023

Counts come from the repository’s dated source evidence. Index cutoff: 2026-11-02 08:16:59 UTC.

View mention counts and date ranges
UTC ranges include their start and exclude their end. Select a period to filter the source evidence.
PeriodStart (UTC)End (exclusive, UTC)MentionsSubmissionsComments
20182018-01-01 00:00:00 UTC2019-01-01 00:00:00 UTC422
20192019-01-01 00:00:00 UTC2020-01-01 00:00:00 UTC303
20202020-01-01 00:00:00 UTC2021-01-01 00:00:00 UTC101
20212021-01-01 00:00:00 UTC2022-01-01 00:00:00 UTC000
20222022-01-01 00:00:00 UTC2023-01-01 00:00:00 UTC514
20232023-01-01 00:00:00 UTC2024-01-01 00:00:00 UTC101

What Hacker News says

4 sources
doomlaser·Apr 10, 2018
They put up their editor source code on Github recently (https://github.com/Unity-Technologies/UnityCsReference), and originally it also included the full source to their runtime garbage collector, which ended up being the standard open source C++ boehm collector (https://github.com/ivmai/bdwgc) from the 90s. Unity should replace it with a reference counting object management system, or update to a newer garbage collection technique to minimize the inadvertent sweeps that cause huge choppy frame rate drops.
In Porting the Unity Engine to .NET CoreCLR
whitten·Mar 26, 2018
Important notes from article: This Friday we published the Unity engine and editor C# source code on GitHub, under a reference-only license. We are not releasing Unity as open source. Not even a little bit. (Sorry.) We also do not take pull requests against the C# reference source code. That’s it! The reference source code repository is at https://github.com/Unity-Technologies/UnityCsReference, enjoy using it as reference for your Unity learning needs.
In Releasing the Unity C# source code

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