Version numbering system

Version numbering is the assigning of unique version numbers to unique states of ETSI deliverables. Within a given version number category (major, technical and editorial), these numbers are assigned in increasing order and correspond to new developments in the deliverable. It applies to all published ETSI deliverables as follows:

The Technical Body or Industry Specification Group is responsible for version numbering and shall ensure that the system is used in a consistent manner within the series of deliverables.

The first draft of a deliverable will be version 0.0.1.

When  changes have been made during the drafting phase, then the subsequent drafts will increase  the third number "x.x.1" of the version number, e.g. x.x.2, x.x.3, …, x.x.9, x.x.10, etc.

The first final published version of a document will be Version 1.1.1.

Subsequent final published documents will increase the first, second or third digit " of the version number (1.x.x, 2.x.x, etc.) or (1.1.x, 1.2..x, etc.) (1.1.1, 1.1.2, etc.) according the scheme above.

While the document is under review, subsequent draft versions will increase just the third digit independently from the type of change applied e.g. revision of "1.1.",  will start as, 1.1.2, 1.1.3, etc.

For your information, "OLD" regime deliverables (I-ETS, ETR, TBR, etc.) were revised using the following system, i.e. the edition number replaced the second figure (Technical) in the ETSI version numbering:

EXAMPLE:       ETS 300 nnn Edition 2 became EN 300 nnn Version 1.2.1.

NOTE: "OLD" regime deliverables had only a single Edition number, e.g. 1, 2 or 3, etc.