TODO

0.9.1 (Alpha)
Sign/Verify rsa/ed25519
Domain
KeyFile
Mode
PidFile
Selector
Socket
Syslog
UMask
UserID

0.9.5 (Beta)
AuthservID
Canonicalization
DiagnosticDirectory
InternalHosts
SyslogFacility 

1.0.0
No additional features planned

Considered for near-term feature release

AlwaysAddARHeader
ChangeRootDirectory
ClockDrift (requires dkimpy change)
Diagnostics
DNSTimeout (required dkmpy change)
MacroList
MilterDebug
MinimumKeyBits
PeerList
SignatureAlgorithm
SyslogSuccess

Later

BaseDirectory
DontSignMailTo
ExemptDomains
ExternalIgnoreList
FixCRLF
KeepAuthResults
KeepTemporaryFiles
KeyTable
LogResults
LogWhy
MaximumHeaders
MaximumSignaturesToVerify
MultipleSignatures
MustBeSigned
NoHeaderB 
OmitHeaders
On-BadSignature
On-Default
On-DNSError
On-InternalError
On-KeyNotFound
On-NoSignature
On-SignatureError
OversignHeaders
RemoveARAll
RemoveARFrom
RemoveOldSignatures 
RequiredHeaders 
RequireSafeKeys
SignatureAlgorithm
SignatureTTL
SignHeaders
SigningTable
SoftwareHeader
StrictHeaders
SubDomains
TemporaryDirectory
TestDNSData
TestPublicKeys

Other OpenDKIM options not contemplated