Sharing link doesn't link to the recently updated version of the file

Lak1 We can't offer help with the "node-red-node-dropbox" module as that's made by a third party, but we'll be happy to help with the Dropbox functionality itself.

I just gave this a try myself and it is working correctly for me. Here's some API commands and output showing:

• uploading a file
• creating a shared link for the file
• accessing the shared link with raw=1 and getting the file contents
• updating the file with different contents
• accessing the same shared link with raw=1 again and getting the updated file contents

curl -X POST https://content.dropboxapi.com/2/files/upload \
    --header "Authorization: Bearer <ACCESS_TOKEN>" \
    --header "Dropbox-API-Arg: {\"path\": \"/test_396449.txt\"}" \
    --header "Content-Type: application/octet-stream" \
    --data-binary "test data version 1"

# {
#   "name": "test_396449.txt",
#   "path_lower": "/test_396449.txt",
#   "path_display": "/test_396449.txt",
#   "id": "id:25N5ksooX-sAAAAAAAOQzw",
#   "client_modified": "2020-02-12T16:17:02Z",
#   "server_modified": "2020-02-12T16:17:02Z",
#   "rev": "59e634d829303021eccc7",
#   "size": 19,
#   "is_downloadable": true,
#   "content_hash": "8aff3fe845b4e724436b87f745efd608286b5bc6d7c94317dbe324cf1445824a"
# }

curl -X POST https://api.dropboxapi.com/2/sharing/create_shared_link_with_settings \
    --header "Authorization: Bearer <ACCESS_TOKEN>" \
    --header "Content-Type: application/json" \
    --data "{\"path\": \"/test_396449.txt\"}"

# {
#   ".tag": "file",
#   "url": "https://www.dropbox.com/s/wet7bqdjwwor8sl/test_396449.txt?dl=0",
#   "id": "id:25N5ksooX-sAAAAAAAOQzw",
#   "name": "test_396449.txt",
#   "path_lower": "/test_396449.txt",
# <redacted for brevity>
#   "client_modified": "2020-02-12T16:17:02Z",
#   "server_modified": "2020-02-12T16:17:02Z",
#   "rev": "59e634d829303021eccc7",
#   "size": 19
# }


curl -L "https://www.dropbox.com/s/wet7bqdjwwor8sl/test_396449.txt?raw=1"

# test data version 1

curl -X POST https://content.dropboxapi.com/2/files/upload \
    --header "Authorization: Bearer <ACCESS_TOKEN>" \
    --header "Dropbox-API-Arg: {\"path\": \"/test_396449.txt\",\"mode\": \"overwrite\"}" \
    --header "Content-Type: application/octet-stream" \
    --data-binary "test data version 2"

# {
#   "name": "test_396449.txt",
#   "path_lower": "/test_396449.txt",
#   "path_display": "/test_396449.txt",
#   "id": "id:25N5ksooX-sAAAAAAAOQzw",
#   "client_modified": "2020-02-12T16:17:49Z",
#   "server_modified": "2020-02-12T16:17:49Z",
#   "rev": "59e63504c98d3021eccc7",
#   "size": 19,
#   "is_downloadable": true,
#   "content_hash": "f6e2c4101df704af41746f4e31737aba964882bcac17983f1d969b56fef39fa2"
# }


curl -L "https://www.dropbox.com/s/wet7bqdjwwor8sl/test_396449.txt?raw=1"

# test data version 2

As Здравко mentioned, make sure you're updating and accessing the same file each time.

If something still isn't working as expected, please share the steps to reproduce the issue and the unexpected output you're getting so we can look into it for you.