user137111: need help for one question please !
what can I do with a address bech32 today ?
my old address bech32 must be changed level up to bech32m (taproot) ?
For find, and see my transactions ? On blockchain ?

user208: 
what can I do with a address bech32 today ?

Receivers that wish to be paid using a native witness v0 output should construct bech32 addresses. Senders then use these addresses to pay them that way.

my old address bech32 must be changed level up to bech32m (taproot) ?

You should never ever try to convert an address from one type into an other. It is up to the receiver wallet to construct addresses, and decide which addresses they accept.
If you want to start using taproot, use a taproot-compatible wallet, and it will necessarily create bech32m addresses to give out.
Note that not all software and providers support sending to bech32m yet: https://whentaproot.org/

For find, and see my transactions ? On blockchain ?

In your wallet.

137111: <p>need help for one question please !</p>
<p>what can I do with a address bech32 today ?</p>
<p>my old address bech32 must be changed level up to bech32m (taproot) ?</p>
<p>For find, and see my transactions ? On blockchain ?</p>
 208: <blockquote>
<p>what can I do with a address bech32 today ?</p>
</blockquote>
<p>Receivers that wish to be paid using a native witness v0 output should construct bech32 addresses. Senders then use these addresses to pay them that way.</p>
<blockquote>
<p>my old address bech32 must be changed level up to bech32m (taproot) ?</p>
</blockquote>
<p>You should <strong>never ever</strong> try to convert an address from one type into an other. It is up to the receiver wallet to construct addresses, and decide which addresses they accept.</p>
<p>If you want to start using taproot, use a taproot-compatible wallet, and it will necessarily create bech32m addresses to give out.</p>
<p>Note that not all software and providers support sending to bech32m yet: <a href="https://whentaproot.org/" rel="nofollow noreferrer">https://whentaproot.org/</a></p>
<blockquote>
<p>For find, and see my transactions ? On blockchain ?</p>
</blockquote>
<p>In your wallet.</p>
