I have an odd question to ask. I'm only new to Raspberry Pi's and recently acquired my first one. However I'm struggling to find the difference(s) between the Raspberry Pi 3 I bought, and the B+ model as shown in a previous answer. From the layout of the board I've got, it looks like (for all intents and purposes) the B+ model. However, on closer inspection on the motherboard, it says 'Raspberry Pi 3 Model B V1.2' .
Can someone tell me what the difference is? Do I have the B+ version? If not, can someone explain to me what the difference is between the models? Is it something that I should be worried or concerned about?