Hello,
if I understood the @ btc with segwit must start with a "3"
I saw it at coinbase when they made the switch: my new reception btc @ starts well with a "3" ...
No, SegWit does NOT have to start with a "3"... there are currently two address formats for SegWit... a "backwards compatible" format known as P2SH-P2WPKH which starts with "3"... Any wallet will be able to SEND to a P2SH-P2WPKH "3" address...if I understood the @ btc with segwit must start with a "3"
I saw it at coinbase when they made the switch: my new reception btc @ starts well with a "3" ...
Then there is the "native" SegWit address format called "bech32", which starts "bc1"... Currently, only a small subset of wallets/exchanges are able to SEND to "bc1" addresses.
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On the other hand on Electrum wallet no change of address (I just updated with 3.0.6)
yet it seems to be supported: https://bitcoincore.org/en/segwit_adoption/#91
Upgrading your wallet does not magically make your wallet into a "SegWit" wallet with SegWit addresses... You need to create a new "SegWit" wallet:yet it seems to be supported: https://bitcoincore.org/en/segwit_adoption/#91
File -> New\Restore -> Standard Wallet -> Create a new seed -> Segwit:
This will create a wallet that generates "bech32" ('bc1') addressses... Note the warning!! - NOT ALL WEBSITES AND OTHER WALLETS SUPPORT THESE ADDRESS TYPES!
If you want more compatibility... Follow TryNinja's suggestion above to generate a SegWit wallet that generates the "P2SH-P2WPKH" ('3') addresses