IEC TS 62686-1:2020 is available as IEC TS 62686-1:2020 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition. IEC TS 62686-1:2020 defines the minimum requirements for general purpose "off the shelf" COTS (commercial off-the-shelf) integrated circuits and discrete semiconductors for ADHP (aerospace, defence and high performance) applications. This Technical Specification applies to all components that can be operated in ADHP applications within the manufacturers' publicly available data sheet limits in conjunction with IEC TS 62239-1. It may be used by other high performance and high reliability industries, at their discretion. This new edition includes the following significant technical changes with respect to the previous edition: - update related to obsolescence of STACK Specification S/0001 revision 14 notice 3; - addition of alternative automotive methods of compliance and revision of Annex B initially related to cross-reference to STACK Specification S/0001; - addition of an Annex C to include a requirement matrix for IEC TS 62686-1 verification.