Trezor, Ledger & Jaxx while they say that CashAddr Security is on the roadmap haven't implemented it either.
Be extra careful when using these wallets and exchanges. Use a Bitcoin Cash Address converter to switch the legacy address to the standard secure CashAddr one, and doublecheck with a blockchain explorer.
Exchanges & Wallets Without CashAddr Security at Present
Trezor
Ledger
Jaxx
Shapeshift
Bitfinex
Bitstamp
(supports withdrawal to CashAddr but no CashAddr deposit address)