Understand build notes

Every change in every Understand build — new features, bug fixes, and known issues, newest first. 227 builds across 10 versions, Nov 8, 2020 – Oct 24, 2026.

Latest build

Build 1266 — 8.0, Oct 24, 2026

Added new check ADA95_7.2.7: Relational Tests.
Added new check ADA95_7.2.6: Subexpression Evaluation.
Added new check ADA95_7.2.5: Comments.
Added new check MISRA12_22.3: The same file shall not be open for read and write access at the same time on different streams.
Added new check MISRA23_0.3.1: Floating-point arithmetic should be used appropriately (Partial).

+ 6 more features in build 1266 →

Browse by version

Understand 8.0

Builds 1253–1266 · 14 builds
May 13 – Oct 24, 2026

362 new · 207 fixes

Understand 7.2

Builds 1235–1252 · 18 builds
Oct 8, 2025 – May 20, 2026

361 new · 199 fixes

Understand 7.1

Builds 1221–1234 · 14 builds
Apr 11 – Sep 9, 2025

103 new · 94 fixes

Understand 7.0

Builds 1207–1220 · 14 builds
Nov 8, 2024 – Mar 10, 2025

198 new · 74 fixes

Understand 6.5

Builds 1158–1206 · 49 builds
Oct 30, 2023 – Oct 7, 2024

342 new · 227 fixes

Understand 6.4

Builds 1140–1157 · 18 builds
Jun 6 – Oct 19, 2023

143 new · 107 fixes

Understand 6.3

Builds 1129–1139 · 11 builds
Jan 12 – May 15, 2023

111 new · 81 fixes

Understand 6.2

Builds 1097–1128 · 32 builds
Apr 1 – Dec 12, 2022

399 new · 163 fixes

Understand 6.1

Builds 1078–1096 · 19 builds
Sep 11, 2021 – Feb 7, 2022

146 new · 99 fixes

Understand 6.0

Builds 1040–1077 · 38 builds
Nov 8, 2020 – Aug 9, 2021

158 new · 170 fixes