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Arm Product

Keil MDK

Keil MDK is an Arm product filed under Integrated Development Environments (IDE). Lifecycle: versioned, 86 versions listed, latest 5.43a (21 Aug 2025).

Releases and Lifecycle

All Arm products

Release and support dates as published by Arm; dates within the next 12 months are highlighted, past dates dimmed. Retrieved 2026-10-14.

Keil MDK 86 versions

Release dates from the vendor article on toolchain versions included in each MDK release; Arm publishes no end-of-support dates for MDK versions.

VersionReleasedSource
5.43a[1]
5.43[1]
5.42a[1]
5.41[1]
5.40[1]
6 (Keil Studio Desktop)[2]
5.39[1]
5.38a[1]
5.38[1]
5.37[1]
5.36[1]
5.35[1]
5.34[1]
5.33[1]
5.32[1]
5.31[1]
5.30[1]
5.29[1]
5.28a[1]
5.27[1]
5.26[1]
5.25[1]
5.24a[1]
5.24[1]
5.23[1]
5.22[1]
5.21a[1]
5.21[1]
5.20[1]
5.18a[1]
5.18[1]
5.17[1]
5.16[1]
5.16a[1]
5.15[1]
5.14[1]
5.13[1]
5.12[1]
5.11a[1]
5.11[1]
4.74[1]
5.10[1]
5.01[1]
4.73[1]
5.00[1]
4.72a[1]
4.72[1]
4.71a[1]
4.71[1]
4.70[1]
4.60[1]
4.54[1]
4.53[1]
4.50[1]
4.23[1]
4.22a[1]
4.21[1]
4.20[1]
4.14[1]
4.13a[1]
4.12[1]
4.11[1]
4.10[1]
4.03a[1]
4.03[1]
4.02[1]
4.01[1]
4.00[1]
3.80a[1]
3.70[1]
3.50[1]
3.40[1]
3.24[1]
3.23a[1]
3.22a[1]
3.20[1]
3.15b[1]
3.11[1]
3.10[1]
3.05a[1]
3.04[1]
3.03a[1]
3.02a[1]
3.01a[1]
3.00a[1]
2.50a[1]
Sources 2
  1. Arm Compiler for Embedded toolchain versions included in Keil MDK releases retrieved 2026-10-14
  2. Media Alert: Arm releases Keil MDK Version 6 retrieved 2026-10-14

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