Configuring DerelictGL3

[Entity325]

Updating my dev environment to the latest version of DMD, which 
means I updated to the latest versions of all of the Derelict 
libraries I use. Everything seems to be mostly in order(changed 
all the old references to "import derelict.opengl3.gl" to "import 
derelict.opengl"), except I'm getting a bunch of missing 
references that I can't for the life of me figure out what I'm 
doing wrong.

||=== Build: testbench in Materium D (compiler: Digital Mars D 
Compiler) ===|
materium\core\display.d|366|Error: undefined identifier 
`glTranslatef`|
materium\core\display.d|371|Error: undefined identifier 
`glEnableClientState`|
materium\core\display.d|376|Error: undefined identifier 
`glEnableClientState`|
materium\core\display.d|452|Error: undefined identifier 
`glDisableClientState`|
materium\core\display.d|455|Error: undefined identifier 
`glDisableClientState`|
materium\core\display.d|517|Error: undefined identifier 
`glShadeModel`|
materium\core\display.d|1379|Error: undefined identifier 
`glMatrixMode`|
materium\core\display.d|1380|Error: undefined identifier 
`glLoadIdentity`|
materium\core\display.d|1390|Error: undefined identifier 
`glOrtho`|
materium\core\display.d|1404|Error: undefined identifier 
`glFrustum`|
materium\core\display.d|1410|Error: undefined identifier 
`glMatrixMode`|
materium\core\display.d|1411|Error: undefined identifier 
`glLoadIdentity`|
||=== Build failed: 12 error(s), 0 warning(s) (0 minute(s), 3 
second(s)) ===|

I've been searching for about a day and I thought I might be 
trying to use deprecated functionality, but attempting to load 
the deprecated functions according to the documentation page did 
a whole lot of nothing, and I can't imagine things like 
"glEnable/DisableClientState" are deprecated.

I'm in the middle of adding shader support to the project I'm 
working on, finally bringing it out of the OpenGL 1.1-era dark 
ages and into the present day, but otherwise everything was 
working pretty well before the update.