And here are a summary of editor/IDE-relevant Tact features.
New or fixed syntax
[ ] Fixed precedence levels for bitwise operators, equality and comparisons. Now the precedence levels match common languages like JS/TS.
[ ] Support for string escape sequences: \\, \", \n, \r, \t, \v, \b, \f, \u{0} through \u{FFFFFF}, \u0000 through \uFFFF, \x00 through \xFF.
[ ] Allow chaining method calls with !!, for instance, map.asCell()!!.hash() is grammatically correct now.
[ ] Trailing commas are allowed in struct instantiations, initOf arguments, init() parameters, inherited traits via with, function arguments and parameters.
[ ] Struct fields punning, i.e. {foo, bar} is syntactic sugar for { foo: foo, bar: bar }.
[ ] Inherited trait lists now must be non-empty if with is used.
[ ] Bitwise XOR (^) operator.
[ ] The implicit empty init function is now present by default in the contract if not declared.
[ ] try {...} and try {...} catch {...} statements.
[ ] foreach loop for the Map type: foreach (k, v in map) {...}.
New stdlib functions
[ ] pow2, log2 and log math functions in @stdlib/math.
The Tact team has just release Tact v1.3.0 on NPM.
The full CHANGELOG for Tact v1.3.0 can be found here: https://github.com/tact-lang/tact/blob/main/CHANGELOG.md#130---2024-05-03
And here are a summary of editor/IDE-relevant Tact features.
New or fixed syntax
\\,\",\n,\r,\t,\v,\b,\f,\u{0}through\u{FFFFFF},\u0000through\uFFFF,\x00through\xFF.!!, for instance,map.asCell()!!.hash()is grammatically correct now.initOfarguments,init()parameters, inherited traits viawith, function arguments and parameters.{foo, bar}is syntactic sugar for{ foo: foo, bar: bar }.withis used.^) operator.initfunction is now present by default in the contract if not declared.try {...}andtry {...} catch {...}statements.foreachloop for theMaptype:foreach (k, v in map) {...}.New stdlib functions
pow2,log2andlogmath functions in@stdlib/math.@stdlib/reserve, namelyReserveExact,ReserveAllExcept,ReserveAtMost,ReserveAddOriginalBalance,ReserveInvertSign,ReserveBounceIfActionFail.New methods
concatnon-modifyingStringBuilder's extension function for chained string concatenations:foo.concat(bar).concat(baz).toStringextension function forAddresstype:addr.toString.isEmptyanddelextension functions for theMaptype:map.isEmpty,map.del(key).