Product Lifecycle

Each Keil product has a Technical Support Lifecycle that begins when the product is launched and ends when the product receives few support questions for a period of time. By the time product support ends, most customers are already using newer, updated product versions.

Obsolete Products

• C166 Version 1, 2, 3, 4, 5, 6
• C251 Version 1, 2, 3
• C51 Version 1, 2, 3, 4, 5, 6, 7
• PK-ARM All Versions
• DB-ARM All Versions
• dScope All Versions
• RTX51 All Versions
• MCB167
• MCB251 Rev 1, 2
• MCB517
• MCB520
• ProROM
• ULINK Rev 1
• µVision Version 1, 2

Keil will continue to make self-service support options available for all legacy products.