But dlang has a long problem of change constantly without backward compatibility and a lot of projects just die because of it, for example the mentioned https://github.com/facebookarchive/warp :

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make

dmd -c -O -inline -release -ofwarp.o cmdline.d constexpr.d context.d directive.d expanded.d file.d id.d lexer.d loc.d macros.d main.d number.d outdeps.d ranges.d skip.d sources.d stringlit.d textbuf.d charclass.d

context.d(222): Error: Implicit string concatenation is error-prone and disallowed in D

context.d(222): Use the explicit syntax instead (concatenating literals is @nogc): "# 1 \"%2$s//\"\x0a" ~ "# 1 \"<command-line>\"\x0a"

context.d(223): Error: Implicit string concatenation is error-prone and disallowed in D

context.d(223): Use the explicit syntax instead (concatenating literals is @nogc): "# 1 \"<command-line>\"\x0a" ~ "# 1 \"%1$s\"\x0a"

macros.d(329): Error: Built-in hex string literals are obsolete, use std.conv.hexString!"FD 61 FD" instead.

macros.d(333): Error: Built-in hex string literals are obsolete, use std.conv.hexString!"FD" instead.

macros.d(338): Error: Built-in hex string literals are obsolete, use std.conv.hexString!"FD 61 62 FD FD" instead.

ranges.d(71): Error: Implicit string concatenation is error-prone and disallowed in D

ranges.d(71): Use the explicit syntax instead (concatenating literals is @nogc): "Buffer overflowed. Possibly caused by forgetting to " ~ "complete a git merge in your code."

Makefile:44: recipe for target 'warp.o' failed

make: ** [warp.o] Error 1

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