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The R5 databases have backwards compatibility. However, as stated previously, you will have limited functionality unttil you upgrade the design of the database to R6. I would recommend that you do that at some point. That way, you will get all the benefit of the new features built into R6.
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The R5 databases have backwards compatibility. However, as stated previously, you will have limited functionality unttil you upgrade the design of the database to R6. I would recommend that you do that at some point. That way, you will get all the benefit of the new features built into R6.

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I designed a database in R6 but it should work on R5 server.<br />
<br />
I simply made a copy from the R6 db to the R5 server and I was very surprised that I could access it.<br />
What's more, when I take a look at the file in the Administrator I can see following:<br />
in Local: &nbsp; &nbsp; &nbsp; File Format -- R6 (43:0) &nbsp;filename.nsf<br />
On server: &nbsp; &nbsp;File Format -- R5 (41:0) &nbsp;filename.nsf<br />
<br />
Earlier I thought that I should make a new copy and rename the .nsf to .ns5 or <br />
I should downgrade it to R5 on the R6 server.<br />
<br />
Afterwords I did the same with my mailbox just to see that it was no accident but it works.<br />
My question: can I leave it or will I encounter troubles in the future?
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I designed a database in R6 but it should work on R5 server.

I simply made a copy from the R6 db to the R5 server and I was very surprised that I could access it.
What's more, when I take a look at the file in the Administrator I can see following:
in Local:       File Format -- R6 (43:0)  filename.nsf
On server:    File Format -- R5 (41:0)  filename.nsf

Earlier I thought that I should make a new copy and rename the .nsf to .ns5 or 
I should downgrade it to R5 on the R6 server.

Afterwords I did the same with my mailbox just to see that it was no accident but it works.
My question: can I leave it or will I encounter troubles in the future?

R6 database on R5 server. Why does it work?

Lotus Software produced the Lotus 1-2-3 spreadsheet program, and later developed Lotus Notes, a groupware and email system. Following its acquisition by IBM, the Notes and Domino client/server collaborative platform were expanded to include functions such as email, calendars, to-do lists, contacts management, teamrooms, discussion forums, file sharing, microblogging, instant messaging, blogs, and user directories. IBM also release SmartSuite, a comprehensive office suite, and followed that with Symphony, unrelated to the Lotus suite of the same name.