Keyman language history

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Keyman 3

• The structure of rules is not backwardly compatible with earlier versions of Keyman. The left hand side of the rule changed from being a sequence of keystrokes to being a context + single keystroke.
• Stores were introduced.
• Long line support

Keyman 4

• The + character became required, and usage became stricter to follow the standard now: the plus character must separate context from keystroke in a rule.
• Keyboards are now compiled by the developer into .kmx files, rather than being distributed as .kmn files.

Keyman 5

• Added Unicode support
• Added Input Method eXtension support
• Deprecated bitmaps statement
• Deprecated language statement. Note that the language statement was reintroduced in Keyman 6 with a new meaning
• Keyman 5.0 added system stores
• Deprecated layout statement

Keyman 6

• Added named character constant support
• Added Ethnologue (ISO 639-3) code support
• Added Mnemonic layouts (reworked in Keyman 8 and 9)
• Added Virtual character keys to support mnemonic layouts
• Keyman 6.0 added support for deadkeys and virtual keys in stores
• Enhanced context() statement to work on left hand side of rule

Keyman 7

• Added &visualkeyboard store
• Enhanced &language store to support combined codes
• Added notany() statement
• Added web keyboard support
• Enhanced &bitmap store to support .ico format files
• Added &windowslanguages store
• Keyman 7.0 extended maximum store length to 4095 characters

Keyman 8

• Added if() statement
• Added set() statement
• Added save() statement
• Added reset() statement

Keyman 9

• Added touch device support
• Added &keyboardversion store
• Added &kmw_embedcss store
• Added platform statement
• Added layer statement
• Added &targets store
• Enforced requirement that use() is last statement in a rule

Keyman 10

• Changed language tags from ISO 639-3 to BCP 47
• Deprecated &ethnologuecode store
• Deprecated &language store
• Deprecated &windowslanguages store
• Left and right modifiers and Caps Lock modifier are supported for Virtual Keys in KeymanWeb 10.0 and later
• Deadkeys now work 100% identically in KeymanWeb 10.0 and Keyman Desktop 10.0, in particular using multiple deadkeys in a row.

Keyman 11

• &targets store now supports linux
• .kmn files without BOM are now treated as UTF-8 unless they contain invalid UTF-8 sequences

Keyman 12

• No language changes.

Keyman 13

• Virtual keys no longer need to be in quotes for the &hotkey store

Keyman 14

• Added range expansions
• Added &CasedKeys store
• Virtual keys may now be identified by ISO9995 key ids (e.g. + [SHIFT E01])
• The compiler now enforces order of certain statements in the context part of the rule
• notany() and context() are now supported together for KeymanWeb, iOS, Android (#3816)
• Hangul named constants were corrected

Keyman 15

• Unicode key identifiers in touch layouts can now have multiple characters, e.g. U_1000_1001
• Casing support is now available for touch layouts, including Caps Lock layer, start of sentence support, and double-tap Shift for Caps.
• Added support for begin NewContext and begin PostKeystroke entrypoints
• Added support for readonly groups
• Added support for &newLayer system store and &oldLayer system store

Keyman 16

• Initial support for LDML keyboard format in compiled files. Note that this is not a change to the Keyman keyboard language.

Keyman 17

• Support for flick and multi-tap gestures in touch layouts
• Support for additional special key caps in touch layouts: *Sp*, *NBSp*, *NarNBSp*, *EnQ*, *EmQ*, *EnSp*, *EmSp*, *PunctSp*, *ThSp*, *HSp*, *ZWSp*, *ZWJ*, *WJ*, *CGJ*, *LTRM*, *RTLM*, *SH*, *HTab*

Keyman 19

• Support for decimal, hexadecimal, and octal character code formats has been removed.
• Support for compile targets has been removed.
• Validity of store, group, and deadkey names has been tightened (disallowing space, comma, non-characters, parentheses, square brackets)